you definitely do not escape the pull of gravity.

你当然还是会受到重力的
It's going to catch up with you in a few seconds.

几秒后便会感到重力
Likewise, when in outer space,

就好比在外太空
when you are orbiting the Earth,

当你在绕地球运行时
people are always floating around in these space stations.

宇航员总是悬浮在太空站
They have not escaped the pull of gravity either.

他们也不是完全不受重力
They have just stopped fighting it.

只是不用抵抗重力了
If you escape the pull of gravity, your spaceship will be off,

如果你完全脱离重力太空船早就飞得没影了
won't be orbiting the Earth.

而不是在轨道上运行
Anyway, I will return to this next time.

那么我们下节课再见
Do your problems.

认真完成题目
There's quite a few problems. You should start them right away.

题目有点多你们最好快点开始