名词
中文翻译：硬化
同义词：
['sclerosity', 'sclerosis例句：1. The skin of the apple has a sclerema that makes it hard to peel.（苹果的皮肤有硬化，很难剥皮。）']
例句：
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1. The skin of the apple has a sclerema that makes it hard to peel.
苹果的皮肤有硬化，很难剥皮。
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2.The sclerema on his hands is caused by an injury.
他手上的硬化是由于一次受伤造成的。
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3.The sclerema on the surface of the skin is a sign of aging.
皮肤表面的硬化是衰老的标志。