Are we just gonna keep talking louder ?

我们是不是一直要这么大声争吵?

I sang louder than I had ever sung .

我比之前唱歌时的声音都要大。

That is why the warnings are being heard ever louder .

那正是警告声音比以往都更为响亮的原因。

She was yelling now , as the train 's bellow grew louder .

她几乎是在喊，火车的轰鸣声越来越响了。

The cries are growing louder .

这种呼声越来越强。