Everyone here is paid by the firework, so they are very fast workers.

每个人拿计件工资，因此他们干得很快。

He’s a really fast worker. He works really fast.

他是一个非常快的工人。他工作得非常快。

Probably fancy yourself as a fast worker, but you're wasting your time, bud.

可能把自己想象成一个快手， 但你是在浪费时间， 伙计。