用于回答感谢,意为“不用谢;不客气”。如: A:Thank you very much.多谢你了。

B:Not at a11.不客气。

A:Thanks for helping me.谢谢你帮助我。

B:Not at a11.I enjoyed it.别客气,很高兴能帮你。 A:Thank you very much.非常感谢你。

B:Not at a11.Il was the least I could do.不用谢,这是我应该做的。