booster
US /ˈbuː.stɚ/
UK /ˈbuː.stɚ/
名词
1.
助推器, 增强器
a device for increasing power or effectiveness
示例:
•
The car has a brake booster for improved stopping power.
这辆车有刹车助力器,以提高制动力。
•
They installed a signal booster to improve cell phone reception.
他们安装了信号增强器以改善手机信号接收。
2.
加强针, 加强剂
a supplementary dose of a vaccine given to maintain or renew the effectiveness of a previous vaccination
示例:
•
She received a booster shot for tetanus.
她接种了破伤风加强针。
•
Many countries are recommending a third booster dose for COVID-19.
许多国家正在推荐第三剂新冠疫苗加强针。
在 Lingoland 学习这个单词
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