动词
中文翻译：赎回
同义词：
['restore', 'redeem', 'repay']
例句：
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1.He redeemed his promise to help her after the accident.
事故发生后，他兑现了承诺来帮助她。
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2. The company redeemed its stock at a discount to raise capital.
公司以折扣价回购股票以筹集资金。
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3.She redeemed her time by volunteering for the local charity.
她通过为当地慈善机构做志愿者来弥补自己的时间。