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
He's such a workaholic that he doesn't know how to spend his leisure time.
他是个工作狂，以至于不懂得如何打发他的空闲时间。
Downy lips make thoughtless slips.
嘴上没毛，办事不牢。
All these cats had one experience in common: they had fallen off high buildings, yet only eight of them died from shock or injuries.
它们都曾从高层建筑上摔下来过，但只有其中的8只猫死于震荡或跌伤。