校园口语习语大全C-7：cool one's heels 久等（mp3和文本下载）

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C-7：cool one's heels 久等

A:Hurry up, or you'll be late again.
A：快点，不然你又要迟到了。

B:I'm coming.
B：来了。

A:You can't keep them cooling their heels each time.
A：你不能每次都让他们空等。

B:Don't worry, I won't this time.
B:放心，这次不会了。