Eclaircissement
n. <法>解说, 说明
🗣️ 情景例句
I don't know why I didn't think of it.
我不知道为什么我没有想到这一点。
Why don't you turn off the stupid program?
何不把无聊的节目关掉？
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低点）、浪高（从波谷到浪峰的垂直距离）