形容词
中文翻译：未受奖励的
同义词：
['uncompensated', 'unrecognized', 'unappreciated例句：1. The researcher was unrewarded for his efforts.（这位研究员的努力没有得到任何回报。）']
例句：
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1. The researcher was unrewarded for his efforts.
这位研究员的努力没有得到任何回报。
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2. The team's hard work went unrewarded.
团队的辛勤工作没有得到任何认可。
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3. The child's simple request for a toy went unrewarded.
这个孩子简单要求一个玩具，但没有得到任何回应。