To work extremely hard, exerting oneself to the utmost, often to the point of showing physical signs of strenuous labor such as chapped hands and calloused feet.
为了完成这项艰巨的任务，他常常通宵达旦，皲手茧足地努力着
To complete this arduous task, he often worked day and night, toiling with chapped hands and calloused feet.
Era:
Early Modern
Frequency:
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