| 单词 | booster |
| 释义 | boost·erBrE /ˈbuːstə(r)/ NAmE /ˈbuːstər/ noun (also ˈbooster rocket ) a rocket that gives a spacecraft extra power when it leaves the earth, or that makes a missilego further 助推器a device that gives extra power to a piece of electrical equipment （电器的）升压机，升压器an extra small amount of a drug that is given to increase the effect of one given earlier , for example to protect you from a disease for longer 加强剂量◆ a tetanus booster 破伤风加强剂a thing that helps , encourages or improves sb /sth 帮助（或激励、改善）…的事物◆ a morale /confidence booster 士气/信心的激励(especiallyNAmE ) a person who gives their support to sb /sth , especially in politics （尤指政治上的）支持者，拥护者◆ a meeting of Republican boosters 共和党支持者的会议 |
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