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分析。
Is it too much to ask for a little quiet?
請略微安靜一點兒，這個要求過分嗎？
You're quite within your rights to ask for your money back.
你完全有權要回你的錢。