The scientists are able to calculate accurately when the spaceship will reach the moon.

科学家能准确地计算出太空什么时候抵达月球。

Let's pretend we're on the spaceship orbiting round the earth!

让我们假装是在沿轨道绕地球运转的宇上!

An astronaut will attempt to leave the stationary spaceship and then return to it.

一名宇航员将试着离开停着的宇,然后再回到里面去。

The spaceship is already being counted down.

宇已开始倒数计时了。

Yet another spaceship has been sent up recently.

最近又发射了一艘宇。

They shot the spaceship up into the sky.

他们把发射上天。

The spaceship blasted off.

宇发射上天了。

The spaceship landed safely.

宇安全降落了。

They have launched a spaceship.

他们发射了一艘宇。