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				N-COUNT 有正面效果的事物;起推动作用的事物 A booster is something that increases a positive or desirable quality. 例句 It was amazing what a morale booster her visits proved...
						令人惊诧的是,她的访问大大鼓舞了士气。
						Praise is a great confidence booster.
						赞扬是一种很好的信心增强剂。
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				N-COUNT 火箭助推器;推进器 A booster is an extra engine in a machine such as a space rocket, which provides an extra amount of power at certain times. 例句 Ground controllers will then fire the booster, sending the satellite into its proper orbit.
						然后地面控制人员将会发射推进器,把卫星送入正常轨道。
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				N-COUNT 加强剂量 A booster is a small injection of a drug that you have some time after a larger injection, in order to make sure that the first injection will remain effective. 
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				N-COUNT 拥护者;热心支持者 A booster is someone who supports a sports team, organization, person, or place very enthusiastically. 例句 A former associate of Mr. Pierce's was among the project's boosters.
						皮尔斯先生的一个前合伙人是这个计划的热心支持者之一。
						...the university's biggest athletic booster club.
						该大学最大的体育爱好者俱乐部