1、
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》
2、
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》
3、
他抬起手用拇指肚揉揉长满老茧的手掌。细看着嵌入肌理的连刷子也刷不掉的污垢。
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4、
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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