日期:2011-01-19 10:10
r esteemed favor; Your valued letter; Your valued favor; 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 favor（來信）
（4） 次函
The next letter; The next mail; The next communication; T