动词
中文翻译：变成
同义词：
['turn into', 'become', 'turn out to be']
例句：
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1.He became a famous writer after years of hard work.
经过多年的努力，他成为了一名著名的作家。
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2. The new law will become effective next month.
新法律下个月生效。
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3.She became a teacher after graduating from college.
她在大学毕业后成为了一名教师。