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n. 注册；签约
✅ 同义词
🗣️ 情景例句
He worked his way through college.
他半工半读念完大学。
Nothing comes out of the sack but what was in it.
无风不起浪。
its action depends on the surface, water or ground, over which it rides.
它的飞行取决于它所悬浮的水面或地面。