He was so busy that he had to ask for help.

　　他太忙了，不得不請求幫助。

　　I know that this is a bad time to ask for help.

　　我知道在這時(shí)候要求幫助不合適。

　　You can ask for a chemical analysis of your tap water.

　　你可以要求給你的自來水做化學(xué)分析。

　　Is it too much to ask for a little quiet?

　　請略微安靜一點(diǎn)兒，這個(gè)要求過分嗎？

　　You're quite within your rights to ask for your money back.

　　你完全有權(quán)要回你的錢。