Paul's treatment
[医] 保罗氏疗法(治慢性风湿病)
🧩 词语组成解析
🗣️ 情景例句
I expect you to be punctual.
我希望你守时。
I ought to keep cool.
我应该保持冷静。
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，