Suppose you're the driver of a trolley car, and your trolley car is hurtling down the track at 60 miles an hour.

假设你是一名电车司机，你的电车以60英里/小时的速度,在轨道上飞驰。

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He would fall over the bridge onto the track right in the way of the trolley car.

他就会摔下桥,正好摔在电车轨道上挡住电车。

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You're standing on a bridge overlooking a trolley car track.

你站在一座桥上，俯瞰着电车轨道。

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And down the track comes a trolley car, at the end of the track are five workers, the brakes don't work, the trolley car is about to careen into the five and kill them.

电车沿着轨道从远处驶来，轨道的尽头有五名工人，电车刹车坏了，这五名工人即将被撞死。

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