Column efficiency
[化] 柱效率
🧩 词语组成解析
column
['kɑləm]
n. 纵队，列;圆柱;专栏;
🗣️ 情景例句
You haven't changed much in fifty years.
你五十年来没有什么变。
The ancient Roman civilization was finally destroyed by the nomadic tribles.
古罗马终于被游牧民族灭亡了。
An apple a day keeps the doctor away.
一天一苹果，医生远离我。