/tɜ:n ||; tɝn/verb1 [I,T] to move or make sth move round a fixed central point （使）旋转，转动: The wheels turned faster and faster. 车轮越转越快。She turned the key in the lock. 她转动钥匙开锁。Turn the steering wheel to the right. 将方向盘向右转动。
2 [I,T] to move your body, or part of your body, so that you are facing in a different direction 转身: He turned round when he heard my voice. 他听到我的声音就转过身来。She turned her back onme(= she deliberately moved her body to face away from me). 她故意转过身去背对着我。
3 [I,T] to change the position of sth 改变位置: I turned the box upside down. 我将箱子颠倒放。He turned the page and started the next chapter. 他翻过一页，开始看下一章。Turn to page 33 in your books. 将书翻到第33页。
4 [T] to point or aim sth in a particular direction 指向，对准（某方向）: She turned her attention back to the television. 她又将注意力转向电视机。
5 [I,T] to change direction when you are moving 改变移动方向: Go straight on and turn left at the church. 一直往前走，到了教堂就向左转。The car turned the corner. 那辆车转过街角。
6 [I,T] (to cause) to become （使）变成: He turned very redwhen I asked him about the money. 我问及那笔钱，他脸就变得通红。These caterpillars will turn into butterflies. 这些毛毛虫将变成蝴蝶。
7 [T] (not used in the continuous tenses 不用于进行时) to reach or pass a particular age or time 达到，超过（某个年龄或时间）: It's turned midnight. 时间已过半夜。
For idioms containing turn, look at the entries for the nouns, adjectives, etc, for example turn a blind eye is at blind. 含turn的习语，参看有关名词、形容词等词条，如turn a blind eye可参看词条blind。 turn (sth) around/round to change position or direction in order to face the opposite way, or to return the way you came 转换位置或方向:
This road is a dead end. We'll have to turn round and go back to the main road. 此路不通，我们只得回头走回大路。He turned the car around and drove off. 他掉转车头开走了。 turn away to stop looking at sb/sth 转过脸去不再看:
She turned away in horror at the sight of the blood. 她一见血就吓得转过脸去。 turn sb away to refuse to allow a person to go into a place 拒绝让某人进入（某处）
turn back to return the same way that you came 折返；回转:
We've come so far already, we can't turn back now. 我们已经走得这么远，现在不能折返。 turn sb/sth down to refuse an offer, etc or the person who makes it 拒绝（某人或某事物）:
Why did you turn that job down? 你为什么不接受那份工作？He asked her to marry him, but she turned him down. 他向她求婚，但她拒绝了。 turn sth down to reduce the sound or heat that sth produces 调低（音量或热度）:
Turn the television down! 把电视机声音调小一点！ turn off (sth) to leave one road and go on another 离开一条路（转入另一条路）
turn sth off to stop the flow of electricity, water, etc by moving a switch, tap, etc 关掉（电器、水龙头等）:
He turned the TV off. 他关掉了电视。 turn sth on to start the flow of electricity, water, etc by moving a switch, tap, etc 打开（电器、水龙头等）:
to turn the lights on 开灯 turn out (for sth) to be present at an event 出席，到场（做某事）
turn out (to be sth) to be in the end 结果，原来，最后（是）…:
The weather turned out fine. 结果天气不错。The house that they had promised us turned out to be a tiny flat. 他们答应给我们的房子竟然只是一个小公寓。 turn sth out to move the switch, etc on a light or a source of heat to stop it 关掉（电灯、暖气）:
Turn the lights out before you go to bed. 上床之前要关灯。 turn over 1 to change position so that the other side is facing out or upwards 改变位置，翻过来（以使另一边朝外或朝上）: He turned over and went back to sleep. 他翻个身又睡着了。
2 (used about an engine) to start or to continue to run （指发动机）开始或继续运转
3 (Brit 英) to change to another programme when you are watching television （看电视时）换台
turn sth over 1 to make sth change position so that the other side is facing out or upwards 使某物改变位置或翻过来（以使另一边朝外或朝上）: You may now turn over your exam papers and begin. 现在你们可以把试卷翻过来，开始做题了。
2 to keep thinking about sth carefully 反复考虑: She kept turning over what he'd said in her mind. 她在脑子里反复掂量他的话。
turn to sb/sth to go to sb/sth to get help, advice, etc 求助于；就教于
turn up 1 to arrive; to appear 到达；出现: What time did they finally turn up? 他们最后什么时候到达？
2 to be found, especially by chance 被找到（尤指偶然地）: I lost my glasses a week ago and they haven't turned up yet. 我一个星期前丢了眼镜，到现在还没找到。
turn sth up to increase the sound or heat that sth produces 调高音量或热度:
Turn the heating up -- I'm cold. 暖气开大一点，我很冷。