Impurity levels
[电] 杂质能阶
🧩 词语组成解析
n. 色阶调整；控制色阶；水平, 标准（level复数形式）
🗣️ 情景例句
The road toll is higher during holiday periods.
在节假日期间路桥费比以往要贵。
The athletes competed for the honor of their country.
选手们为了国家的荣誉而互相竞赛。
four girls and a boy, an event which radically changed their lives.
4女1男。这事使他们的生活发生了根本的变化。