名词
中文翻译：频繁的
同义词：
['frequent', 'frequented', 'frequenting']
例句：
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1. The teacher frequently corrects his students' mistakes.
老师经常纠正学生的错误。
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2. She often visits her friends in the city.
她经常去城里看她的朋友们。
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3. He frequently travels to different parts of the world.
他经常去世界各地旅行。