What can I do for you?

　　我能為您做點什么？

　　I just don't know what to do for the best.

　　我就是弄不清做什么才好。

　　It's amazing what some people will do for gain.

　　有的人為一己之利而干出的事令人驚訝。

　　It's surprising what people will do for money.

　　人為了錢什么干不出來，想想真令人愕然。

　　What did she do for a living?

　　她過去干哪一行為生？

　　We need some new curtains, but these will do for the meanwhile.

　　我們需要一些新的窗簾，但這些暫時還可以用。

　　Are you having a big do for your birthday?

　　你打算舉行大型生日宴會嗎？