Zanjon
深沟
🗣️ 情景例句
So I know.
所以我了解这些。
There are always two sides to everything.
每件是都有两面性。
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）