动词短语中文翻译
中文翻译：使变硬
同义词：
['harden', 'harden to stone例句：1. The old tree was so worn out that it could hardly be called a tree anymore.（这棵老树已经磨损得几乎不能再被称为树了。）']
例句：
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1. The old tree was so worn out that it could hardly be called a tree anymore.
这棵老树已经磨损得几乎不能再被称为树了。
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2.The river has hardened into stone over the years.
这条河多年来已经硬化成石头了。
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3.The rock hardened into stone as it sat there for centuries.
这块岩石经过几个世纪的时间变得坚硬如石。