动词
中文翻译：免费
同义词：
['avoid', 'exclude', 'exempt', 'liberate']
例句：
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1. The museum is free for children under 18.
博物馆对18岁以下的儿童免费开放。
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2. She decided to free herself from her job.
她决定摆脱工作。
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3. The company has been exempt from paying taxes for the past three years.
该公司在过去三年免交税款。