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1·Her feet turn in.

她的两脚呈内八字。《牛津词典》

2·My father would turn in his grave if he knew.

我父亲知道的话在九泉之下也会不得安宁的。《牛津词典》

3·You must turn in your pass when you leave the building.

你离开大楼时必须交还通行证。《牛津词典》

4·Events took a dramatic turn in the weeks that followed.

在以后的几周里，事态急转直下。《牛津词典》

5·He spun the wheel sharply and made a U turn in the middle of the road.

他猛打方向盘，在路中间掉了个头。《柯林斯英汉双解大词典》

6·I heard the key turn in the front door and I was out of bed like a shot.

我听见钥匙开前门的声音，立刻从床上起来了。《柯林斯英汉双解大词典》

7·Why not give it up and turn in?

为什么不放弃它去睡觉呢？

8·If you break a rule, your punishment might be small, like losing a turn in a game.

如果你违反了规则，你的惩罚可能很小，如在游戏中输掉一个回合。

9·They wouldn't turn in the lock, either.

它们在锁里也转不动。

10·Did anyone happen to turn in a new handbag?

有人碰巧上交了一个新的手提包吗？

交上

1·Although working very hard, he failed to turn in his research paper on time.

尽管他非常努力，但还是没能按时交上他的实验报告。

2·You are free to collaborate with other students on the homework, but you must turn in your own individually written solution and you must specify the names of your collaborators.

你可以与其他同学合作完成作业，但你必须交上自己完成的解答并且写明合作者的名字。

3·You must turn in you papers before Friday.

在星期五之前你应该交上你的论文。

归还

1·You must turn in the key when you leave the hotel.

你离开旅馆时一定要归还钥匙。

告发

1·No, I don't think I would turn in my own child, but I would make their life so miserable, they would probably wish I had put them somewhere else.

不，我想我不会告发我自己的孩子，但我会让他们的生活变得痛苦。他们可能会希望我把他们放在其他另外的地方。