diff --git a/application/language/zh-Hant/sales_lang.php b/application/language/zh-Hant/sales_lang.php
index f63cba97a..a96a9f28b 100644
--- a/application/language/zh-Hant/sales_lang.php
+++ b/application/language/zh-Hant/sales_lang.php
@@ -1,13 +1,12 @@
-<?php 
-
+<?php
 $lang["customers_available_points"] = "現有積分";
 $lang["rewards_package"] = "獎賞";
 $lang["rewards_remaining_balance"] = "剩餘獎賞積分 ";
-$lang["sales_account_number"] = "";
+$lang["sales_account_number"] = "帳戶 #";
 $lang["sales_add_payment"] = "新增付款";
 $lang["sales_amount_due"] = "商品金額";
 $lang["sales_amount_tendered"] = "已收帳款";
-$lang["sales_authorized_signature"] = "";
+$lang["sales_authorized_signature"] = "授權簽名";
 $lang["sales_cancel_sale"] = "取消銷售";
 $lang["sales_cash"] = "現金";
 $lang["sales_cash_deposit"] = "已預付金額";
@@ -30,20 +29,20 @@ $lang["sales_customer_discount"] = "折扣";
 $lang["sales_customer_email"] = "客戶電郵地址";
 $lang["sales_customer_location"] = "客戶所在地";
 $lang["sales_customer_mailchimp_status"] = "Mailchimp電子報行銷狀態";
-$lang["sales_customer_optional"] = "非必需";
+$lang["sales_customer_optional"] = "到期付款需要";
 $lang["sales_customer_required"] = "必需";
 $lang["sales_customer_total"] = "總數";
 $lang["sales_date"] = "日期";
 $lang["sales_date_range"] = "日期範圍";
-$lang["sales_date_required"] = "必需填上正確的日期";
-$lang["sales_date_type"] = "必需填寫日期";
+$lang["sales_date_required"] = "必需填上正確的日期.";
+$lang["sales_date_type"] = "必需填寫日期.";
 $lang["sales_debit"] = "簽帳卡";
 $lang["sales_delete"] = "確認刪除";
-$lang["sales_delete_confirmation"] = "你確定要刪除此銷售資料，這個動作不能撤消";
+$lang["sales_delete_confirmation"] = "你確定要刪除此銷售資料，這個動作不能還原.";
 $lang["sales_delete_entire_sale"] = "刪除全部銷售資料";
-$lang["sales_delete_successful"] = "您已成功刪除銷售資料";
-$lang["sales_delete_unsuccessful"] = "銷售資料刪除失敗";
-$lang["sales_description_abbrv"] = "倒序";
+$lang["sales_delete_successful"] = "您已成功刪除銷售資料.";
+$lang["sales_delete_unsuccessful"] = "銷售資料刪除失敗.";
+$lang["sales_description_abbrv"] = "倒序.";
 $lang["sales_discard"] = "放棄";
 $lang["sales_discard_quote"] = "";
 $lang["sales_discount"] = "折扣 %";
@@ -65,112 +64,112 @@ $lang["sales_giftcard_balance"] = "䄠金劵餘額";
 $lang["sales_giftcard_number"] = "禮金券編號";
 $lang["sales_group_by_category"] = "以類別分類";
 $lang["sales_group_by_type"] = "以類型分類";
-$lang["sales_hsn"] = "";
+$lang["sales_hsn"] = "HSN";
 $lang["sales_id"] = "銷售編號";
-$lang["sales_include_prices"] = "";
+$lang["sales_include_prices"] = "包括價格？";
 $lang["sales_invoice"] = "發票";
 $lang["sales_invoice_confirm"] = "已傳送發票到";
 $lang["sales_invoice_enable"] = "建立發票";
 $lang["sales_invoice_filter"] = "發票選項";
-$lang["sales_invoice_no_email"] = "此客戶沒有正確的電郵地址";
+$lang["sales_invoice_no_email"] = "此客戶沒有正確的電郵地址.";
 $lang["sales_invoice_number"] = "發票編號#";
-$lang["sales_invoice_number_duplicate"] = "重覆的發票號碼";
+$lang["sales_invoice_number_duplicate"] = "重覆的發票號碼.";
 $lang["sales_invoice_sent"] = "發票已發送到";
-$lang["sales_invoice_total"] = "";
-$lang["sales_invoice_type_custom_invoice"] = "";
-$lang["sales_invoice_type_custom_tax_invoice"] = "";
-$lang["sales_invoice_type_invoice"] = "";
-$lang["sales_invoice_type_tax_invoice"] = "";
+$lang["sales_invoice_total"] = "帳單總額";
+$lang["sales_invoice_type_custom_invoice"] = "自定義發票";
+$lang["sales_invoice_type_custom_tax_invoice"] = "自定義稅務發票";
+$lang["sales_invoice_type_invoice"] = "發票";
+$lang["sales_invoice_type_tax_invoice"] = "稅務發票";
 $lang["sales_invoice_unsent"] = "發票傳送失敗";
 $lang["sales_invoice_update"] = "重新清點";
-$lang["sales_item_insufficient_of_stock"] = "產品庫存不足";
+$lang["sales_item_insufficient_of_stock"] = "產品庫存不足.";
 $lang["sales_item_name"] = "產品名稱";
 $lang["sales_item_number"] = "產品 #";
-$lang["sales_item_out_of_stock"] = "產品缺貨";
+$lang["sales_item_out_of_stock"] = "產品缺貨.";
 $lang["sales_mode"] = "登記模式";
-$lang["sales_must_enter_numeric"] = "已收帳款必須輸入數值";
-$lang["sales_must_enter_numeric_giftcard"] = "禮金券編號必須輸入數值";
+$lang["sales_must_enter_numeric"] = "已收帳款必須輸入數值.";
+$lang["sales_must_enter_numeric_giftcard"] = "禮金券編號必須輸入數值.";
 $lang["sales_new_customer"] = "新客戶";
 $lang["sales_new_item"] = "新增產品";
-$lang["sales_no_description"] = "None";
-$lang["sales_no_filter"] = "All";
-$lang["sales_no_items_in_cart"] = "購物車中沒有任何產品";
-$lang["sales_no_sales_to_display"] = "No sales to display";
-$lang["sales_none_selected"] = "您還沒有選擇任何產品進行編輯";
-$lang["sales_not_authorized"] = "";
-$lang["sales_one_or_multiple"] = "";
+$lang["sales_no_description"] = "沒有描述";
+$lang["sales_no_filter"] = "全部";
+$lang["sales_no_items_in_cart"] = "購物車中沒有任何產品.";
+$lang["sales_no_sales_to_display"] = "沒有任何紀錄.";
+$lang["sales_none_selected"] = "您還沒有選擇任何產品進行編輯.";
+$lang["sales_not_authorized"] = "此操作未經授權.";
+$lang["sales_one_or_multiple"] = "銷售";
 $lang["sales_payment"] = "付款方式";
-$lang["sales_payment_amount"] = "Amount";
-$lang["sales_payment_not_cover_total"] = "付款金額不足";
-$lang["sales_payment_type"] = "Type";
-$lang["sales_payments_total"] = "Payments Total";
+$lang["sales_payment_amount"] = "總額";
+$lang["sales_payment_not_cover_total"] = "付款金額不足.";
+$lang["sales_payment_type"] = "銷售付款類別";
+$lang["sales_payments_total"] = "付款總額";
 $lang["sales_price"] = "價格";
 $lang["sales_print_after_sale"] = "出貨時打印收據";
-$lang["sales_quantity"] = "數量.";
-$lang["sales_quantity_less_than_reorder_level"] = "警告！產品的庫存數量是不足的。您仍然可以處理銷售，但檢查您的庫存";
-$lang["sales_quantity_less_than_zero"] = "警告！產品的庫存數量是不足的。您仍然可以處理銷售，但檢查您的庫存";
-$lang["sales_quantity_of_items"] = "";
-$lang["sales_quote"] = "";
-$lang["sales_quote_number"] = "";
-$lang["sales_quote_number_duplicate"] = "";
-$lang["sales_quote_sent"] = "";
-$lang["sales_quote_unsent"] = "";
+$lang["sales_quantity"] = "數量";
+$lang["sales_quantity_less_than_reorder_level"] = "警告！產品的庫存數量是不足的。您仍然可以處理銷售，但檢查您的庫存.";
+$lang["sales_quantity_less_than_zero"] = "警告！產品的庫存數量是不足的。您仍然可以處理銷售，但檢查您的庫存.";
+$lang["sales_quantity_of_items"] = "貨品數量";
+$lang["sales_quote"] = "報價";
+$lang["sales_quote_number"] = "報價單編號";
+$lang["sales_quote_number_duplicate"] = "報價單編號必須獨有.";
+$lang["sales_quote_sent"] = "報價單寄給";
+$lang["sales_quote_unsent"] = "報價單發送敗失";
 $lang["sales_receipt"] = "銷貨單";
-$lang["sales_receipt_no_email"] = "";
-$lang["sales_receipt_number"] = "POS #";
-$lang["sales_receipt_sent"] = "Receipt sent to";
-$lang["sales_receipt_unsent"] = "Receipt failed to be sent to";
+$lang["sales_receipt_no_email"] = "此客戶沒有有效的電子郵件地址.";
+$lang["sales_receipt_number"] = "銷售收據編號";
+$lang["sales_receipt_sent"] = "發送收據";
+$lang["sales_receipt_unsent"] = "收據未能發送";
 $lang["sales_register"] = "銷售登記";
 $lang["sales_remove_customer"] = "移除客戶";
 $lang["sales_return"] = "退貨";
-$lang["sales_rewards"] = "";
-$lang["sales_rewards_balance"] = "";
+$lang["sales_rewards"] = "積分";
+$lang["sales_rewards_balance"] = "積分總數";
 $lang["sales_sale"] = "銷售";
-$lang["sales_sale_by_invoice"] = "";
+$lang["sales_sale_by_invoice"] = "發票銷售";
 $lang["sales_sale_for_customer"] = "客戶:";
-$lang["sales_sale_time"] = "Time";
-$lang["sales_sales_tax"] = "";
+$lang["sales_sale_time"] = "時間";
+$lang["sales_sales_tax"] = "銷售稅";
 $lang["sales_select_customer"] = "選擇客戶 (Optional)";
-$lang["sales_send_invoice"] = "Send Invoice";
-$lang["sales_send_quote"] = "";
-$lang["sales_send_receipt"] = "Send Receipt";
-$lang["sales_send_work_order"] = "";
+$lang["sales_send_invoice"] = "發送發票";
+$lang["sales_send_quote"] = "發送報價";
+$lang["sales_send_receipt"] = "發送收據";
+$lang["sales_send_work_order"] = "發送訂單";
 $lang["sales_serial"] = "序號";
-$lang["sales_show_invoice"] = "Show Invoice";
-$lang["sales_show_receipt"] = "Show Receipt";
-$lang["sales_start_typing_customer_name"] = "開始輸入客戶的名字";
+$lang["sales_show_invoice"] = "顯示發票";
+$lang["sales_show_receipt"] = "顯示收據";
+$lang["sales_start_typing_customer_name"] = "開始輸入客戶的名字...";
 $lang["sales_start_typing_item_name"] = "開始輸入產品名或掃描條碼...";
-$lang["sales_stock"] = "";
-$lang["sales_stock_location"] = "";
+$lang["sales_stock"] = "庫存";
+$lang["sales_stock_location"] = "庫存地點";
 $lang["sales_sub_total"] = "小計";
 $lang["sales_successfully_deleted"] = "銷售資料成功刪除";
-$lang["sales_successfully_restored"] = "";
-$lang["sales_successfully_suspended_sale"] = "本銷售資料已經成功暫停";
-$lang["sales_successfully_updated"] = "銷售資料成功更新";
+$lang["sales_successfully_restored"] = "您已成功還原";
+$lang["sales_successfully_suspended_sale"] = "本銷售資料已經成功暫停.";
+$lang["sales_successfully_updated"] = "銷售資料成功更新.";
 $lang["sales_suspend_sale"] = "暫停銷售";
-$lang["sales_suspended_doc_id"] = "";
+$lang["sales_suspended_doc_id"] = "文件";
 $lang["sales_suspended_sale_id"] = "暫停銷售編號";
 $lang["sales_suspended_sales"] = "已暫停銷售";
-$lang["sales_table"] = "";
-$lang["sales_takings"] = "Takings";
+$lang["sales_table"] = "銷售表格";
+$lang["sales_takings"] = "銷售收入";
 $lang["sales_tax"] = "稅額";
-$lang["sales_tax_id"] = "";
-$lang["sales_tax_invoice"] = "";
+$lang["sales_tax_id"] = "稅務編號";
+$lang["sales_tax_invoice"] = "稅務發票";
 $lang["sales_tax_percent"] = "稅率 %";
 $lang["sales_total"] = "總計";
-$lang["sales_total_tax_exclusive"] = "Tax excluded";
-$lang["sales_transaction_failed"] = "銷售交易失敗";
+$lang["sales_total_tax_exclusive"] = "不含稅";
+$lang["sales_transaction_failed"] = "銷售交易失敗.";
 $lang["sales_unable_to_add_item"] = "無法增加出售產品";
-$lang["sales_unsuccessfully_deleted"] = "銷售資料刪除失敗";
-$lang["sales_unsuccessfully_restored"] = "";
-$lang["sales_unsuccessfully_suspended_sale"] = "本銷售資料已經成功暫停";
-$lang["sales_unsuccessfully_updated"] = "銷售資料更新失敗";
+$lang["sales_unsuccessfully_deleted"] = "銷售資料刪除失敗.";
+$lang["sales_unsuccessfully_restored"] = "銷售還原失敗.";
+$lang["sales_unsuccessfully_suspended_sale"] = "本銷售資料已經成功暫停.";
+$lang["sales_unsuccessfully_updated"] = "銷售資料更新失敗.";
 $lang["sales_unsuspend"] = "取消暫停銷售";
 $lang["sales_unsuspend_and_delete"] = "取消暫停銷售並刪除";
 $lang["sales_update"] = "編輯";
-$lang["sales_upi"] = "";
-$lang["sales_work_order"] = "";
-$lang["sales_work_order_number"] = "";
-$lang["sales_work_order_number_duplicate"] = "";
-$lang["sales_work_order_sent"] = "";
-$lang["sales_work_order_unsent"] = "";
+$lang["sales_upi"] = "UPI";
+$lang["sales_work_order"] = "工作指示";
+$lang["sales_work_order_number"] = "工作指示編號";
+$lang["sales_work_order_number_duplicate"] = "工作編號重複.";
+$lang["sales_work_order_sent"] = "發送工作指示";
+$lang["sales_work_order_unsent"] = "工作指示發送失敗";