动词短语
中文翻译：不受感染
同义词：
['be free from', 'be immune to']
例句：
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1.The vaccine is designed to protect people from getting the flu.
这种疫苗旨在保护人们免受流感的侵害。
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2. We need to ensure that our team is free from any potential health risks.
我们需要确保我们的团队不受任何潜在健康风险的影响。
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3. The new drug is said to be free from side effects.
据说这种新药没有副作用。