I heard a child sobbing loudly.

　　我聽見有個(gè)孩子在嗚嗚地哭。

　　He heard the screech of brakes.

　　他聽到了剎車的尖而刺耳聲。

　　Whoever heard of such a thing!

　　究竟有誰(shuí)聽說(shuō)過(guò)這種事！