动词
中文翻译：行动
同义词：
['perform', 'act upon', 'execute', 'conduct', 'perform an action']
例句：
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1. He decided to take the initiative and start a new project.
他决定主动开始一个新项目。
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2. The teacher acted quickly to save the child from falling.
老师迅速采取行动，救起了孩子。
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3. She acted as if she knew exactly what he was talking about.
她表现得好像她知道他在说什么。