Schoolday
n. 教学日；学生时代
🗣️ 情景例句
Would you like to get married?
你想结婚吗？
How many gallons are you going to take?
你要拿几加仑？
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）