With a small to mid-size rover, use a cushion of airbags along with retro rockets.

如果是小型或中型的探测车，可以使用气囊垫和复古火箭。

With a large lander, use retro rockets and landing legs to touch down, going about six miles per hour.

对于大型着陆器，使用复古火箭和着陆腿着陆，速度约为每小时 6 英里。

Then it deploys a parachute and at just the right moment, it releases a rover retro rocketing towards a treacherous terrain.

然后它展开降落伞，在合适的时机，向险恶的地形释放了火星探测车。

He probably died on the way back, just from the g forces when he hit the ground the Pacecraft then caught fire because of a fault with the retro rockets during reentry.

他很可能死在返回的路上，就在重力作用下，当他撞到地面时，飞船着火了，因为在再入大气层时，复古火箭出现了故障。