名词
中文翻译：工作
同义词：
['work', 'labor', 'exert effort', 'strive for success']
例句：
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1. She is working hard to improve her English skills.
她正在努力提高她的英语技能。
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2.The company is investing heavily in research and development.
该公司正大力投资于研究和开发。
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3.They are striving for success in their careers.
他们正努力在职业生涯中取得成功。