Preparative column
[化] 制备柱
🧩 词语组成解析
a. 准备性的, 预备性的\\nn. 预备, 准备, 预备信号
column
['kɑləm]
n. 纵队，列;圆柱;专栏;
🗣️ 情景例句
Typing is easy once you get the hang of it.
一旦你掌握诀窍，打字就很简单。
The wolf has a winning game when the shepherds quarrel.
鹬蚌相争，渔翁得利。
The lorry was loaded with empty beer bottles and hundreds of them slid off the back of the vehicle and on to the road.
卡车上装着空啤酒瓶。成百只瓶子顺势从卡车后面滑出车外落在马路上。