基本释义:
n.(火箭发射时)起飞,启动
实用例句
Why does a space shuttle get hotter on reentry than on liftoff?
能想象航天飞机穿越大气层时受到摩擦产生的热量有多惊人吗?来一起听听 吧 .
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英英释义
Noun1. the initial ascent of a rocket from its launching pad
n.(火箭发射时)起飞,启动
Why does a space shuttle get hotter on reentry than on liftoff?
能想象航天飞机穿越大气层时受到摩擦产生的热量有多惊人吗?来一起听听 吧 .
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1. the initial ascent of a rocket from its launching pad