When you bring a group of your friends back to your house, you're expecting to have a good time, : and your grandparent is there and says, "Oh, it's so good to see a bunch of young people.

当你带着,一群朋友回家，想要狂欢一下，但你的祖父母在家并说，“噢！看到一群年轻人真好。

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or be certain that you know how to get home if it's late

或者很晚的时候，要保证你知道回家的路，

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How long does it take you to get home?

你回家要多久？

How long实战 - SpeakingMax英语口语达人