The word 'booster' refers to a device that increases the power or effectiveness of something, especially an engine or an electrical system. It implies an increase in force or support.
单词'booster'的意思是“（电器的）增压机”或“助推器，多级火箭的第一级”。
| 单词 | booster |
|---|---|
| 音标 | [ˈbu:stə(r)] [ˈbustɚ] |
| 释义 | n.["（电器的）增压机","助推器，多级火箭的第一级","热情的支持者"] |
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