Pre-column
[化] 前置柱
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
column
['kɑləm]
n. 纵队，列;圆柱;专栏;
🗣️ 情景例句
How can anybody get a word in around here?
在这里谁有机会插话呢？
I asked him to stop, but he wouldn't.
我请他停止，但是他不肯。
We're going to substitute a better item for number 3.
我们将以品质较好的来代替三号产品。