I can't come out tonight. I have to revise.

我今晚不能出去。我得复习。

It usually takes them more than ten hours to revise for exams.

他们通常要花十多个小时复习准备考试。

We may have to revise this figure upwards.

我们也许要将这个数字往上调一调。

With time he came to revise his opinion of the profession.

随着时间的推移，他开始修正自己对这一职业的看法。

I can see I will have to revise my opinions of his abilities now.

我明白我现在不得不改变对他的能力的看法了。