（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.

　

（6）贵方来电、电传及传真

Your telegram; Your wire; Your cablegram（从国外）; Your coded wire（密码电报）; Your code message; Your cipher telegram; Your wireless telegram; Your TELEX; Your Fax.

　

（7）贵方电话

Your telephone message; Your phone message; Your telephonic communication; Your telephone call; Your ring.

　

（8）通知

(Noun)

Advice; Notice; Information; Notification; Communication; A report; News; Intelligence; Message.

(Verb)（通知，告知）