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
Your address?
你的住址？
He might not be here.
他可能不在这儿。
I realized sadly that I had been completely defeated by their ingenuity.
我懊丧地感到败在了足智多谋的蚂蚁的手下。