西红柿、辣椒、茄子、秋葵以及这一科的其他植物在温度超过32摄氏度时，花蕾和幼果会掉落。

Tomatoes, peppers, eggplants, okra, and other plants in this family can drop flower buds and young fruits when the temperature exceeds 32 degrees Celsius.

youdao

例如，松树会掉落松针。

For example, pine trees drop pine needles.

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我以为夜里它肯定会掉落的。

I thought it would surely fall during the night.

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now I'm really fantastic at drawing this mechanical device, but you can imagine that dropping a weight can cause a paddle wheel to turn.

机械装置的时候,我真的很着迷，你可以想象,当重物掉落的时候会带动桨轮旋转。

麻省理工公开课 - 热力学与动力学课程节选