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- 面团在冷空气中慢慢收缩了。
The dough shrank slowly in the cold air.
- 收缩物收缩的事物，尤指肌肉
Something, especially a muscle, that contracts.
- 我的套头毛衣遇热水後收缩了。
The hot water shrank my pullover.
- 金属遇冷则收缩。
Metals contract as they get cooler.
- 热的金属一冷（下来）就收缩。
The hot metal contracts as it cools (down).
- 肌肉的收缩是人体的一种反应。
The contraction of muscle is a reaction of the body.
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