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
What happened?
怎么样？
Never think yourself above your business.
切莫自视过高。
Can you tell me why our bid was not accepted?
请告诉我为什么我们没有得标好吗？