【正文】 To be of service to one.。 To render service to one。 To be at one39。 To order。 Order。s sincere thanks for。s gratitude (appreciation)。s thanks。 To esteem (it) a favour (privilege)。 To be obliged。 To be (feel) thankful。 Be kind enough。 Kindly。 To be honoured with doing (being) something。 To feel honoured to do (be)。 To esteem (regard) it as a high honour to do (be)。 To have the honour to do (be)。 To be regrettable。 To be regretted。 To feel a great regret for。 To one39。 To regret to say。 To be mortified。 To be sorry。 To take the liberty to do something。 To fall due (bee) due（日期將到）。 In reference to。 Referring to。 Anent。 Respecting。 In regard to。 As regards。 Concerning。 In pursuance of. 　 （17）就...，關(guān)于 About。 In pliance with。 In obedience to。 In accordance with。 Conformably to。 By return of airmail. 　 （16）依照 According to。 By return of post。 By special delivery。 By express messenger。 Without loss of time。 At an early date。s earliest convenience。 As promptly as possible。 As soon as possible。 With the quickest possible despatch。 With dispatch。 With all speed。 Promptly。 To be rejoiced in (at). 　 （13）隨函附件 Enclose。 to be delighted at (in)(with)。 To take pleasure in doing (something)。 to have pleasure in (of) doing。 To have the pleasure of doing。 In Confirmation of（為確認(rèn)...,為證實(shí)...）。 Confirming。 To make out a receipt（開出收據(jù)）。 To have。 To be favoured with。 To e to hand。 To be in receipt of。 A receiver（領(lǐng)取人，取款人）。 To get a letter answered. 　 （10）收訖，收到 (Noun) Receipt（收到）。 To wait for an answer. （收到回信） To get an answer。 In reply to。 Answering to。 To answer one39。 To send an answer。s answer。 To give a reply。 A response. (Verb) To answer。 To announce（宣布）. 　 （9）回信 (Noun) An answer。 To give notice（預(yù)告）。 To mail a notice。 To send word。 To acquaint (a person) with。 To apprise (a person) of。 Message. (Verb)（通知，告知） To municate (a fact) to。 News。 Communication。 Information。 Your ring. 　 （8）通知 (Noun) Advice。 Your telephonic munication。 Your Fax. 　 （7）貴方電話 Your telephone message。 Your wireless telegram。 Your code message。 Your cablegram（從國外）。 Your letter dated yesterday. 　 （6）貴方來電、電傳及傳真 Your telegram。 Your favour of yesterday39。 Your favour of even date(AE)。 Yours under date (of) the 5th July。 Your favour dated (the) 5th June。 The letter following。 The next mail。 The last respects（自己的信）。 The last post。 The present. 　 （3）前函 The last letter。 This letter。 Our (my) respects。 Your friendly advice。 Your greatly esteemed letter。 Your note。 Your valued letter。 your esteemed letter。 Clauses Used in Business Letters（1）貴函 Your letter。1. It would give us a great pleasure to render you a similar service should an opportunity occur. 2. We wish to reciprocate the goodwill. 3. We shall on a similar occasion be pleased to reciprocate. 4. We hope to be able to reciprocate your good offices on a similar occasion. 5. We are always ready to render you such or similar services. 6. We shall at all times be willing to reciprocate such or similar favour. 7. We shall be happy to have an opportunity of reciprocating to you on a similar occasion. （11）今天我已經(jīng)講完應(yīng)報(bào)告事項(xiàng)，等。1. Please excuse this clerical error. 2. We tender you our apology for the inconvenience this error may have caused you. 3. We request you to accept our regret for the error of our clerk. 4. We greatly regret that we have caused you such a inconvenience. 5. We wish to express our regret for the annoyance this mistake has caused you. 6. We frankly admit we were at fault and we are anxious to repair the consequences. （9）請多加關(guān)照，等。1. We assure you of our best services at all times. 2. We shall spare no efforts in endeavouring to be of services to you. 3. We shall be pleased to be of service to you at all times. （7）請?jiān)徑o您添了麻煩，等。1. Please excuse my late reply to your very friendly letter of March 1. 2. I hope you will forgive me for not having written you for so long. 3. I hope you will excuse me for not having replied to you until today. 4. I humbly apologize you for my delay in answering to your kind letter of May 5. 5. I have to (must) apologize you for not answering your letter in time. 6. I must ask you to kindly accept our excuses, late as they are. （5）我們對您的關(guān)照，謹(jǐn)致謝意，等。1. We await your rep