Picknometer,pycnometer
[化] 比重瓶; 比重管
🗣️ 情景例句
I heard that you get vitamin D from sunshine, and that you soak it like a sponge.
我听说人们像海绵一样从阳光中摄入维生素D。
The pen is mightier than the sword.
笔利于剑。
When she came in with the last course -- a huge pudding --
当她端着最后一道菜——一大盘布丁——