Echo是一个英语单词，意思是回声、反响、共鸣等。以下是三个关于“echo”的双语例句：

The hall echoed with the sound of her laughter. 大厅里回荡着她笑声。

His words have a hollow echo. 他的话有中空回音。

The room echoed with the sound of their laughter. 房间里回荡着他们的笑声。