动词
中文翻译：跌倒
同义词：
['fall', 'collapse', 'topple']
例句：
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1.The old tree was so tall that it could not support itself and tumbled over.
那棵老树太高了，以至于它无法支撑自己而倒下了。
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2. The box fell off the table and tumbled to the ground.
盒子从桌子上掉下来，摔到了地上。
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3.The car collided with another vehicle and tumbled several meters into a ditch.
汽车与另一辆车相撞，然后翻滚了好几米掉进了沟里。