Plummer's piil
[医] 普鲁麦氏丸(含甘汞、锑剂等)
🗣️ 情景例句
Would you tell me something about your family?
请告诉我一些你的家庭情况，好吗？
The poor man wants much, the miser everything.
贫穷人要求多，守财奴样样要。
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，