amplify

We will have to amplify your voice with a microphone, or the back row won't hear you.

(Chinese) 我们必须用麦克风放大你的声音，否则后排的人听不见。

The canyon walls served to amplify the sound of the crashing waterfall.

(Chinese) 峡谷的岩壁起到了放大瀑布撞击声的作用。

Could you please amplify your initial proposal with some specific budget figures?

(Chinese) 你能否在最初的提案中增加一些具体的预算数字来详细说明？

The writer chose to amplify the historical background in the second edition of the book.

(Chinese) 作者选择在本书的第二版中详述历史背景。