Equinity
马科动物的本性[特点]
🗣️ 情景例句
Rotten weather, isn't it?
天气糟透了， 不是吗？
Won't you come in, please?
请进来好吗？
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）