I didn't expect to knock up against my old teacher at the supermarket
She was surprised to knock up against a former colleague on vacation
We might knock up against some difficulties during the project
He was afraid he would knock up against the boss unexpectedly
It's always nice to knock up against old friends unexpectedly
I hope we don't knock up against any major problems
They were pleased to knock up against each other after years apart
Be careful not to knock up against any thorny bushes
It's quite common to knock up against a celebrity in Hollywood
We didn't anticipate knocking up against such a large crowd
I think I may have to knock up against some old rules here.
That sounds like a challenge. What do you plan to do?
I will try my best to adapt and find a way forward.
The boat will knock up against the dock
The boat will bump into the dock
The boat will collide with the dock