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。
I'm going to ask for a rise.
我打算要求加薪。
Don't be too proud to ask for help.
不要放不下自尊而不求人幫忙。