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
Did you look at them?
你看过了吗？
Bite off more than one can chew.
贪多咽不下。
The hovercraft is particularly useful in large areas with poor communications such as Africa or Australia;
气垫船在非洲、澳大利亚等交通不发达地区特别有用。