动词
中文翻译：志愿
同义词：
['offer to do', 'volunteer for', 'volunteer oneself']
例句：
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1. Hevolunteers his time every weekend to help the homeless.
他每个周末都自愿抽出时间帮助无家可归的人。
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2.She volunteers at a local food bank.
她在一家当地的食品银行做志愿者。
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3. The volunteer was recognized for his exceptional work.
这位志愿者因其卓越的工作而受到表彰。