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
Hello, Mr. Carlson.
哈喽， Carlson先生。
Please be on time.
请准时到。
I think I'd like to see some of the things that one can't find in other countries.
我想我喜欢看些别的国家看不到的东西。