Co-efficient
n. [数] 系数；率；协同因素\\na. 合作的；共同作用的
🧩 词语组成解析
[医] 钴(27号元素)
efficient
[i'fiʃənt]
adj. 有效率的;（直接）生效的;能干的;（因省钱、省时或省力等而）收效大的;
🗣️ 情景例句
They have an opening.
他们有一个空房间。
You have to be on time. Don't be late.
只准早到，不许迟到。
He gets a good salary, but he always borrows money from his friends and never pays it back.
他的薪水很高，但他却总是向朋友借钱，并且从来不还。