推进器是由火箭发动机提供的，而不是螺旋桨和方向舵，这使得转向变得困难。

Propulsion is provided by a rocket engine, rather than a propeller and rudder, which makes steering difficult.

youdao

推进器是由火箭发动机提供的，而不是螺旋桨和方向舵，这使得转向变得困难。

Propulsion is provided by a rocket engine, rather than a propeller and rudder, which makes steering difficult.

youdao