I hope you don't mind me barging in like this.

希望你不介意我如此冒昧打岔。

I'm sorry for barging in.

很抱歉我擅自闯入。

We can't have a lot of people barging in.

我们不允许很多人闯进来。

Let him finish his words. Don't keep barging in.

让他把话讲完。不要老是打断他。

We can't just go barging into people's apartments.

我们不能就这样乱冲到别人家里面。