Beckmann's apparatus
[医] 贝克曼氏仪器(测定分子量用)
🧩 词语组成解析
🗣️ 情景例句
I would like a room on the 5th floor.
我想在五楼要一个房间。
Step by step the ladder is ascended.
登梯需要逐级登。
In the library she has got books on many different subjects.
在图书馆里她准备了各种科目的书籍。