大喊大叫的

1.It's not polite to howl down a speaker.

喊叫妨碍讲话是不礼貌。

2.In English, all capital words are used only when you are very angary, almost equal to shouting or cursing. This way I suggest you never use these capitals again.

在英语里，所有写字母都是当你特生气时才用，几乎相当于喊叫或者诅咒时候。我建议你一定不要再用这些写字母了！