I'll appreciate it if you will give us a counter-offer. 如果你能还盘，我将不胜感激。
I shall appreciate it if you will give me full information regarding thisbrand, with price, etc. 我很想了解有关该牌号的产品情况和价格等等，烦请告知，谢谢。
I shall appreciate it if you will give me full information regarding thisbrand,with price,etc. 我很想了解有关该牌号的产品情况和价格等等，烦请告知，谢谢。
It will is greatly appreciate if you will give us your cooperation. 如贵方能与我们合作，则不胜感激。
I'd appreciate it if you will turn out the light. 如果你能关灯，我会很感谢你。
Owing to a tight monetary situation imposed by the government,it is difficultto let you have a cheque t once. We shall appreciate it,therefore,if you willgive us an another fortnight to settle your account due on June 21. 由于政府采取紧缩政策，银根很紧，很难立即给贵方支票，因此若蒙再宽限两星期，以清偿贵方6月21日到期的帐款，则不胜感激。