Unna's pencil
[医] 乌纳氏笔剂, 棒剂
🧩 词语组成解析
🗣️ 情景例句
Did they write some bad news?
他们写了什么坏消息吗？
After I get home, I'll call you.
到家以后，我会给你打电话。
he realizes its volume, as the space that the shape displaces in the air.
他能意识到物体的体积，那就是它的形状在空气中所占的空间。