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HSK levels

    锻炼 鍛鍊

    duànliàn

    1. to engage in physical exercise; to work out
    2. to toughen; to temper; to train oneself
    3. (fig.) to develop one's skills

    我每天都去健身房锻炼。 Wǒ měitiān dōu qù jiànshēnfáng duànliàn.