step rocket

[step ˈrɔkit]
  • 释义

  • 多级火箭;

  • 双语例句
  • 1、

    As the step rocket goes up, some of the stages at the side fall away.

    当多级火箭上升时, 边上的几级火箭就脱落了.

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  • 2、

    Built in several pieces, the rocket is called a step rocket.

    因为火箭是分成几节制造的, 所以称为多级火前.

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