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retro-rocket的英文翻譯是什麼意思，詞典釋義與在線翻譯：
英英釋義
名詞 retrorocket:
-
a small rocket engine on a larger rocket or spacecraft that is fired to slow or alter its course
retro-rocket的用法和樣例：
例句
用作名詞 (n.)
- The propulsion of a rocket requires a great amount of energy.
推進火箭需要很大的能量。
辭彙搭配
- retro rocket 制動火箭
