译文 如果您能尽快回复我的咨询，我将万分感激。
点睛 本句是典型的询问信件的结尾句。其中，prompt意为“迅速的”。如：
He is always prompt in answering letters. 他总是迅速地回复来信。
inquiry意为“询问；调查”。如：
They've promised a thorough inquiry into the plane crash. 他们答应对这次飞机失事进行彻底调查。
本句也可以拆分成一个复杂句。如：
If you pay favorable attention to my inquiry promptly, I will be very grateful.
句型拓展
Please render me some valuable advice which is conducive to my final decision. 请给我提供一些宝贵意见，帮助我作最后决定。
I am looking forward to a favorable reply at your earliest convenience. 期待您尽早回信。
I would be much obliged to you if you could let me know the procedures I have to go through. 如果您能告诉我所需的程序，我将十分感激。