Column constraint
[计] 列约束
🧩 词语组成解析
column
['kɑləm]
n. 纵队，列;圆柱;专栏;
🗣️ 情景例句
Charley was the star of the team.
Charley，是当时队里的明星。
Help! I've been kidnapped.
救命呀！我被绑架了！
I'm glad to have met you.
很高兴遇到你。