come up against

突然(或意外)碰到(困难、反对等)

例句与用法：

We expect to come up against a lot of opposition to the scheme.

我们预计这个计划要遭到很多人反对。

He often came up against the problem of money.

他那时常常碰到钱的问题。

详细释义：

突然地碰到(困难等)

We should solve all the problems we have come up against.

我们必须解决已经碰到的所有问题。