You better buckle up. Mm.你最好系好安全带

buckle up把 ... 扣紧或扣牢

It's much safer if you buckle up while driving.

开车时系好安全带就会安全得多。

I buckle up all the time for my own safety.

为了自身的安全我都会系上安全带。

You never cease to amaze and...你总是有办法令我惊讶

cease to停止

You will cease to fear if you cease to hope.

绝望无畏惧。

When shall I cease to regret you?

什么时候我会不再为你感到惋惜呢?

which means I'm no longer in their crosshairs,这意味着我不再是怀疑目标

no longer不再

He weeded out the books he no longer needed.

他把不再需要的书清理出去了。

These conditions no longer obtain.

这些条件已不复存在了。