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
Hang in there. things will get better.
坚持住，情况会好起来。
Thank you for your gift.
谢谢你的礼物。
I can't understand why he is being so selfish. He isn't usually like that.
我不明白他此刻怎么这么自私。他平时不这样。