turn on

英 [ˈtɜːn ɒn]

美 [ˈtɜːrn ɑːn]

打开（设备）; 接通（…的供应）; 诱惑; 激发…的性欲; 突然表现得; 突然装出; 对…进行身体（或语言）攻击; 斥责; 依靠; 取决于

柯林斯词典

PHRASAL VERB 打开（设备）；接通（…的供应）
When youturn ona piece of equipment or a supply of something, you cause heat, sound, or water to be produced by adjusting the controls.
1. I want to turn on the television...
  我想开电视。
2. She asked them why they hadn't turned the lights on.
  她问他们为什么不开灯。
See also:The body that turns men on doesn't have to be perfect.turn-on
PHRASAL VERB 突然表现得;突然装出
If you say that someoneturns ona particular way of behaving, you mean that they suddenly start behaving in that way, and you are often also suggesting that this is insincere.
1. He could also turn on the style when the occasion demanded.
  如果场合需要，他也能瞬间就表现得风度翩翩。
PHRASAL VERB 对…进行身体（或语言)攻击;斥责
If someoneturns onyou, they attack you or speak angrily to you.
1. Demonstrators turned on police, overturning vehicles and setting fire to them...
  示威者攻击警察，推翻车辆并将其纵火焚烧。
2. He turned on Pete and accused him of being mixed up in drugs.
  他怒斥皮特，指责他沾染毒品。
PHRASAL VERB 依靠;取决于
If somethingturns ona particular thing, its success or truth depends on that thing.
1. The plot turns on whether Ilsa will choose her lover or her husband.
  故事情节取决于伊尔莎会选择情人还是丈夫。

verb

become hostile towards
1. The dog suddenly turned on the mailman
get high, stoned, or drugged
1. He trips every weekend
Synonym:triptrip outget off
cause to operate by flipping a switch
1. switch on the light
2. turn on the stereo
Synonym:switch on
stimulate sexually
1. This movie usually arouses the male audience
Synonym:arousesexexcitewind up
cause to be agitated, excited, or roused
1. The speaker charged up the crowd with his inflammatory remarks
Synonym:agitaterousechargecommoveexcitecharge up
produce suddenly or automatically
1. Turn on the charm
2. turn on the waterworks
be contingent on
1. The outcomes rides on the results of the election
2. Your grade will depends on your homework
Synonym:depend ondevolve ondepend uponridehinge onhinge upon