And, of course, it does not have to carry tons of rocket fuel.
而且，它显然无需携带成吨的火箭燃料。
Rocket carry the world's first greenhouse-gas monitoring satellite, takes off from the space center.
火箭携带着世界上第一个温室气体监测卫星从航天中心升空。
A rocket engine typically goes faster but has to carry its own supply of oxygen.
火箭发动机通常使飞行更快，但需要自携氧气。
A rocket engine typically goes faster but has to carry its own supply of oxygen.
火箭发动机通常使飞行更快，但需要自携氧气。
应用推荐