It won't shout loudly, even make noise.

它不会大喊大叫，甚至也不会制造噪音。

Let us shout loudly: "AIDS prevention!"

让我们一起大声地喊出：“预防艾滋病！”

Shout loudly to other people is impolite.

对别人大喊大叫是不礼貌的。

Why shout loudly?

为什么呐喊？

If you shout loudly, you'll hear the echo.

你大声喊，你就能听到回声。