1、
His hands have become calloused, because he does heavy manual work every day.
他的手每天都做重活,不久就磨出了趼子.
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2、
3、
4、
His hands were rough and calloused, from years of karate practice...
由于多年练习空手道，他的双手粗糙不平，布满老茧。
《柯林斯高阶英汉双解学习词典》
