名词
中文翻译：增强剂注射
同义词：
['booster shot', 'booster dose例句：1. The vaccine is a booster injection to protect against the virus.（疫苗是一种增强剂注射，用来预防病毒。）']
例句：
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1. The vaccine is a booster injection to protect against the virus.
疫苗是一种增强剂注射，用来预防病毒。
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2.The doctor gave her a booster injection after her surgery.
手术后，医生给她注射了一次增强剂。
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3. The patient needs another booster injection to fight off the infection.
患者需要再次注射增强剂来抵抗感染。