日期:2011-01-19 10:10
ich you requested in your letter of May 20 by air.
We sent you, by air, 5 samples of the goods which you requested in your letter of May 20.
5、Conciseness 簡潔
（1）避免廢話連篇：
例如：
.We wish to acknowledge receipt of your letter...可改為：We appreciate your letter...
.Enclosed herewith please find two copies of...可改為: We enclose two copies of...
（2）避免不必要的重復：
（3）短句、單詞的運用：
Enclosed herewith-----enclosed
at this time-----now
due to the fact that-----because
a draft in