我们车间使用的这种机器是中国制造的。 但是，如果从句和主句的动作在将来不同的时间发生，则两部分都要用来将来时

Such machines as are used in our workshop are made in china.

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而第二个when引导的从句“when twopeoplecometogether forlove,rather thanahouse,caroragoodjob”是描述前面的谓语“isinnocent”,是时间状语从句,用于说明什么时候爱情才是纯真的,这时when译成“当……时候”。

b. This is a time when love is innocent when two people come together for love, rather than a house, car or a good job.

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当把电供给电灯时，它就会变成光能。(译成时间状语从句)。

Electrical energy that is supplied to a lamp can be turned into light energy.

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时间状语从句，我打错了。

Before is adverbial clause of time, I think.

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时间状语从句可表示过去、现在和将来。

Time clauses can refer to the past, present, or future.

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“每次…”（可以引导时间状语从句）

I used to wear it every time I visited them.

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他到上海时，他妈妈到车站接他。(时间状语从句)。

When he arrived in Shanghai, his mother met him at the station.

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自从他进厂，工作一直很努力。 （时间状语从句）

He has worked very hard since he entered the factory .

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直到我父亲回来时间状语从句引导词我才上床睡觉。

I didn't go to bed until (till) my father came back.

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我听林斌老师讲的是时间状语从句啊我还迷糊呢。

It was ten o'clock when Mum came home.

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信号发出后，公共汽车就启动了。 （时间）改为从句。

Thee signal given, the bus started.

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信号发出后，公共汽车就启动了。 （时间）改为从句。

Thee signal given, the bus started.

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