We are interested in ordering your XL/2 Water Purifier
我们对订购你的滤水器很感兴趣.
Would you pleace sent me your latest catalogue right away?
请将你最新的目录立即发给我
I hope to hear from you soon
我希望很快能够收到你的来信
I hope the information enclosed will prove useful to you.
我希望这些附上的信息会对你有帮助
好吧 第四题我放弃了.