turn off

关掉；转弯，使改变方向

Some scientists have a hunch that a pregnant woman's diet and her exposure to various chemicals turn on some fetal genes and turn off others.(有些科学家有预感，认为孕妇的饮食和她接触的各种化学物质会开启一些胎儿基因，而关闭其他基因。)

Did you turn off the lights and check the locks on all the doors?(你关了灯，检查了所有门的锁了吗？)

How come people have to turn off their cell phones and all our electronic devices when an airplane is about to take off?(当飞机要起飞时，人们为什么要关掉他们的手机和所有的电子设备呢？)

Turn off IM and chat.(关掉即时通讯和聊天。)

The late musician Dennis Brian is said to have asked a fellow train passenger to turn off his radio.(据说，已故音乐家丹尼斯·布莱恩曾要求火车上的一名乘客关掉收音机。)

Would you turn off the TV, please?(请把电视关掉，好吗？)

She often forgot to turn off the gas and the food she was cooking usually got burnt.(她经常忘记关煤气，她做的饭经常烧糊了。)

Turn off the shower.(关掉淋浴。)

"Turn off the TV now!" she shouted.(“现在把电视关掉！”她喊道。)

We should never forget to turn off the lights when we leave the classrooms.(离开教室时，我们永远不要忘记关灯。)

verb

1. cause to stop operating by disengaging a switch

e.g. Turn off the stereo, please
cut the engine
turn out the lights

Synonym: switch offcutturn out

2. cause to feel intense dislike or distaste

Synonym: put off

3. make a turn

e.g. turn off at the parking area

1. 驶离，离开（…路);转弯;拐入旁路
If you turn off the road or path you are going along, you start going along a different road or path which leads away from it.

e.g. The truck turned off the main road along the gravelly track which led to the farm...
卡车驶离大路，沿着通向农场的碎石小道行进。
e.g. He turned off only to find he was trapped in a town square with no easy exit.
他转入岔路，却发现自己困在了一个难觅出口的市镇广场。

2. 关上;关掉；截断，切断（…的供应）
When you turn off a piece of equipment or a supply of something, you stop heat, sound, or water being produced by adjusting the controls.

e.g. The light's a bit too harsh. You can turn it off...
灯光有点太刺眼了。你可以把灯关掉。
e.g. I have to get up and turn off the radio...
我必须起床关上收音机。

3. 使丧失兴趣
If something turns you off a particular subject or activity, it makes you have no interest in it.

e.g. What turns teenagers off science and technology?...
是什么使青少年对科学技术丧失了兴趣？
e.g. Teaching off a blackboard is boring, and undoubtedly turns people off.
照本宣科枯燥乏味，无疑会使人们丧失学习兴趣。

4. 使没有性欲；使失去性欲
If something or someone turns you off, you do not find them sexually attractive or they stop you feeling sexually excited.

e.g. Aggressive men turn me off completely.
咄咄逼人的男人让我完全没有欲望。