1、definite

明确的;确定的

It's too soon to give a definite answer.

要给出一个明确的答复，现在还为时过早。

Her Royal Highness has definite views about most things.

女王陛下对大多数事情都有明确的观点。

清楚的;明显的;无疑的

There has already been a definite improvement.

已经有了显著的改进。

That's a very definite possibility.

那是很有可能的。

清晰的;分明的

Studying his face in the bathroom mirror he wished he had more definite features.

看着浴室镜子中的脸，他真希望自己的五官能够更分明一些。

2、actual

真实的；实际的

The segments are filmed using either local actors or the actual people involved.

这些片断是由当地的演员或真实的当事人参与拍摄的。

Officials admit the actual number of AIDS victims is much higher than statistics reflect.

官员们承认艾滋病患者的实际数量比统计所显示的数字要大得多。

（用于对比主次方面）真正的，实际的

She had compiled pages of notes, but she had not yet gotten down to doing the actual writing.

她已编写了数页注释，但还未开始真正意义上的写作。

The exercises in this chapter can guide you, but it will be up to you to do the actual work.

这一章的练习能给你指导，但实际的工作还得靠你自己完成。