Conserver
[医]保存者, 管理者
🗣️ 情景例句
That'll be thirty-six dollars, sir.
先生，车费是36元。
I'm glad that we've settled the price.
很高兴我们就价格达成了共识。
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）