名词
中文翻译：Unknown
同义词：
['concert', 'effort', 'endeavor', 'exertion', 'labor例句：1. She is constantly concentrating on her studies.（她一直在努力学习。）']
例句：
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1. She is constantly concentrating on her studies.
她一直在努力学习。
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2. The concert was a great success.
音乐会非常成功。
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3. He put in all his effort to win the championship.
他尽了全力赢得冠军。