Earlierize
vt.(比原定时间)提前做
🗣️ 情景例句
I'd like to make an appointment with him.
我想跟他约个晤谈时间。
I learned history last month.
我上个月学历史。
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）