Friedrich's principle
[医] 弗里德里希氏原理
🧩 词语组成解析
🗣️ 情景例句
They're so thoughtful.
他们真周到。
I worked at the drugstore last night.
我昨晚在药房工作。
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。