1、particular

特定的；特指的

I remembered a particular story about a postman who was a murderer.

我记得有个故事，讲的是一个邮递员杀人的事情。

I have to know exactly why it is I'm doing a particular job.

我必须明确知道我为什么要做特定的一项工作。

特殊的；特别的；独特的

I have a particular responsibility to ensure I make the right decision.

我肩负特殊责任，必须确保自己作出的决定是正确的。

Fatigue is a particular problem for women.

疲劳是女性特有的问题。

没什么重要（或特别）的事物（或人）

I went along thinking of nothing in particular only looking at things around me.

我一路走着，没想什么特别的事，只是四下张望着。

Drew made some remarks to nobody in particular and said goodbye.

德鲁说了一些不针对任何人的话就告辞了。

2、turn on

打开（设备）；接通（…的供应）

I want to turn on the television.

我想开电视。

She asked them why they hadn't turned the lights on.

她问他们为什么不开灯。

对…进行身体（或语言)攻击;斥责

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。

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。

依靠;取决于

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。