Dep.
[医] 纯化的, 精制的
🗣️ 情景例句
then I care about us.
那么我便关心我们大家。
He is in conference.
他正在开会。
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）