but he's acting like a man with nothing to hide.

不过他看似心里没鬼

And if he doesn't, we know we've got our guy in custody.

如果没有的话 说明我们抓对了人

you just told me, acceleration is -9.8,

你告诉我 加速度是-9.8

and up was taken to be the positive direction.

而正方向为竖直向上

as the light goes by.

电子会上下运动

is what creates electric fields. Right?

就形成了电场

that won't be true.

则不会这样

things will slide backwards.

它就会向后滚

around the time we started the futures market

房价才开始上涨

We are now down in real terms

而如今全国的房价

If it's going to be moving with a constant speed what does that mean?

如果它以匀速运动 这意味着什么

There has to be some force applied in order to create the motion

必须有力作用于物体 它才能运动