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His hands were rough and callused, from years of karate practice.
他的双手由于多年的空手道练习，粗糙而布满老茧。
《柯林斯英汉双解大词典》
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Heavy work callused his hands.
繁重的劳动使他的双手生出茧子来。
youdao
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The long march had callused his feet.
沃尔登握了握他那长满老茧的手。
youdao
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The long march had callused his feet.
沃尔登握了握他那长满老茧的手。
youdao