Simon: Why hasn't their letter been answered?怎么他们的信还没有回？
Linda: I'm afraid Mr. Chen is on vacation and Liu Lan is off sick.我想是因为陈先生休假还有刘兰正病着....
Here is a letter of apology:这里是一封道歉信： To Whom It May Concern,.......敬启者：....... I must apologize for the delay in replying to your letter of July 14. Unfortunately, a number of our staff have recently been ill. This, at a time when several of our employees take their annual vacation, has resulted in unavoidable delays in replying to daily mail. I enclose the details of our trade discount as requested and look forward to receiving your order. Yours truly, Simon Manager NTE Co. 我对没能及时答复您7月14日的来信表示道歉。 很不幸，最近我的一些雇员生病。同时又有几位雇员正在休年假，这造成了不得已的延误。 作为答复，我随信寄去我们贸易折扣的详细说明，并盼望收到你们的订单。 您的忠诚的朋友 西蒙 NTE公司经理
