急問英文句子

In commercial world, the common practice is
(1) keep your communication as simple as you can. ( maximum use of common abbreviations 儘量用普及式簡寫)
(2) straight to the point. (直接到題)
(3) 老外商界不喜歡東方式的過份謙虛(差一點便當你作虛偽), 絕不講題外話。不浪費精力。
Therefore, your answer even in this way is generally accepted:-
Please let us know your decision ASAP. (as soon as possible, 簡寫一定用大寫)
格式上不用me 而用us, 你只代表公司。除非你是想講俾佢知，你公司是 one man band.

2007-07-25 00:16:41 補充：
earliest convenience 是過時的商業英語。2000年後已甚小商界採用。

2007-07-25 00:20:45 補充：
我發現yahoo！知識＋的網友在商業範疇比較認識小兼過時。

Please let me/us know of your decision at your earliest convenience.

It will be nice for you to inform me regardless of your choice.

Whether you accept or not, please let me know through email as soon as possible.