Chromatographical
a. chromatography的变形
🗣️ 情景例句
I work with families every day, Ellen.
我每天的工作就是接触一些家庭， Ellen。
You get what you pay for.
便宜没好货。
You've done very well. It's a pity you missed the sports meeting last week.
你学得不错嘛。很可惜，你错过了上周的运动会。