When you are learning to ride a bicycle, you often fall off.

初学自行车时，常会从车上掉下来。

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Give the elevator rope is not too complex and dangerous work, we often to such a high building, but have never heard of the elevator will fall off.

给电梯换钢绳并不是太复杂、危险的工作，我们经常到这么高的楼里做，但从来没听说过电梯会掉下去的。

youdao

Give the elevator rope is not too complex and dangerous work, we often to such a high building, but have never heard of the elevator will fall off.

给电梯换钢绳并不是太复杂、危险的工作，我们经常到这么高的楼里做，但从来没听说过电梯会掉下去的。

youdao