Brookweed
n. [植物]水繁缕; 溪草
🗣️ 情景例句
How much do I owe you?
我应付你多少钱？
Every dog has his day, and every man his hour.
人人都有得意的日子。
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）