@NASA I'm thinking every time we launched something beyond orbit we must have changed the orbit of earth.
@NASA我在想每次我们在轨道之外发射一些东西时，我们一定改变了地球的轨道。
@NASA I'm thinking every time we launched something beyond orbit we must have changed the orbit of earth.
@NASA我在想每次我们在轨道之外发射一些东西时，我们一定改变了地球的轨道。