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
What are your goals?
你有什么目标？
I can't do two things at the same time.
我只有一双手。
Her eyes were fixed on her plate and in a short time, she was busy eating.
她的眼睛盯着自己的盘子，不一会儿就忙着吃起来了。