Chrysron
灭虫菊
🗣️ 情景例句
I know the owner very well.
我和老板很熟。
He stole my purse!
他偷了我的手袋！
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）