请帮忙翻译成英文：我们有很大的机会

We have a big chance.
不过上面这个不太通顺
We have many chances.这个意思差不多，而且符合英语国情

we have a big/good chance

We have a good chance.
The chance is on us.

We have a big chance

这个已经挺好了，口语表达opportunity 这个词不经常用，至少没有chance好

We have a big chance.

We have a great opportunity/chance