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
Remember, you win, and I cook dinner for the entire family.
记得吗， 你要是赢了， 我给全家做晚餐。
Good afternoon, sir.
下午好，先生。
four girls and a boy, an event which radically changed their lives.
4女1男。这事使他们的生活发生了根本的变化。