Luckily, you can pull a lever and divert the trolley to another track.

幸运的是，你可以拉一个拉杆，让电车开到另一条轨道上。

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If you pull this lever, the roof will slide back.

拉一下这根杆，顶就往后滑动。

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And now we pull down on the lever.

现在我们推动了杠杆。

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How did you know though when to pull the parachute lever.

那你知道何时该拉降落伞拉手了呢？

youdao

How did you know though when to pull the parachute lever.

那你知道何时该拉降落伞拉手了呢？

youdao