"Echo" 是英语中表示 "大声重复" 的词。这个词的来源是希腊语 "echo"，意为 "重复声音"。
例句：
The sound of the waterfall created a beautiful echo in the canyon.（瀑布的声音在峡谷里形成了美丽的回声。）
The echo of his voice could be heard throughout the large hall.（他的声音的回声可以在整个大厅里听到。）
She repeated her question, but there was no echo from the audience.（她重复了她的问题，但是观众没有回应。）