名词中文翻译
中文翻译：自由落体
同义词：
['fall', 'descent', 'free-falling', 'free-fall']
例句：
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1.The ball is falling freely from the top of the tree.
球从树上自由落下。
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2. The plane is descending towards the ground.
飞机正在向地面下降。
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3. The athlete is free-falling down the slope.
运动员正在沿着山坡自由下落。