商务英语中级写作指导：商业英语信函一

　（1）贵函
　　Your letter; Your favour; your esteemed letter; Your esteemed favour; Your valued letter; Your valued favour; Your note; Your communication; Your greatly esteemed letter; Your very friendly note; Your friendly advice; Yours.

　　（2）本信，本函
　　Our (my) letter; Our (my) respects; Ours (mine); This letter; these lines; The present.

　　（3）前函
　　The last letter; The last mail; The last post; the last communication; The last respects(自己的信); The last favour(来信).

　　（4）次函
　　The next letter; The next mail; The next communication; The letter following; the following.

　　（5）贵函发出日期
　　Your letter of (the) 5th May; Your favour dated (the) 5th June; Yours of the 3rd July; Yours under date (of) the 5th July; Your letter bearing date 5th July; Your favour of even date(AE); Your letter of yesterday; Your favour of yesterday’s date; Your letter dated yesterday.