1. in rough 处于草稿状态

Write it out in rough and copy it.

请写出初稿，并把初稿在电脑上打好字。

2.in the rough 未完成的；未加工的；处于粗糙状态；大体上，

The plan is yet in the rough.

这计划还很粗糙。

We only saw the new painting in the rough.

我们只见过那幅新画未完成时的样子。

I have not seen the picture since it was finished, though I saw it when it was still in the rough.

这幅画完成后我还没有看过，不过以前在画没画完的时候我已经看过了。

The country has a big potential but civilization there is still in the rough.

那个国家的潜力很大，但文明程度还不够发达。

The account is true in the rough.

账目大体上没有错。

a diamond in the rough 本义：没有雕琢打磨的钻石；引申含义：未经琢磨的钻石；外粗内秀的人

I am sure he is a diamond in the rough.

我坚信他是一个有潜质的人。

I think that girl is a diamond in the rough.

我认为那女孩是一块未经雕琢的钻石。