1 PHRASAL VERB 上床睡觉 When you turn in, you go to bed. 上床睡觉 [informal]
SYN go to bed, go to sleep, hit the sack [slang] , retire for the night
2 PHRASAL VERB 把(犯罪嫌疑人)交给警方;告发;检举;自首 If you turn someone in, you take them to the police or tell the police where they are because they are suspected of committing a crime. If you turn yourself in, you go to the police because you have been involved in a crime. 把(犯罪嫌疑人)交给警方;告发;检举;自首
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He has been given until noon today to turn himself in to authorities. [VERB noun PREP. + to]
他被要求在今天中午前向当局投案自首。
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There would be strong incentives to turn someone in. [VERB noun PREP.]
向警方举报某人将获重赏。
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He seems to be making all the arrangements necessary so that he can continue trafficking in drugs when he turns himself in… [VERB noun PREP.]
他似乎正在做好各种必要安排,以便他自首后还能继续贩毒。
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I might today hesitate to turn in a burglar. [VERB PREP. noun]
现在让我把入室窃贼送交警方,我可能会有所顾虑。
SYN hand someone over, denounce, inform on, blow the whistle on [informal]
3 PHRASAL VERB 上交;提交;交付 When you turn in a completed piece of work, especially written work, you give it to the person who asked you to do it. 上交;提交;交付
4 PHRASAL VERB 交还;返还 If you turn something in, you return it to the place or person you borrowed it from. 交还;返还 [mainly US] [Also VERB n PREPOSITION]
SYN hand in, return, deliver, give back