单词：liquid-fuel rocket
liquid-fuel rocket的用法和样例：
例句
- American physicist Robert Goddard conducts the first successful launch of a liquid-fueled rocket.年美国物理学家戈塔德第一次成功发射了液体燃料火箭。
- Perched on the shoulers of the booster is the second stage, the most powerful hydrogen-fueled rocket ever built.放在助飞火箭上的是第二节，那是迄今制造的最强大氢燃料火箭。
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