Efficient operation
[计] 有效操作
🧩 词语组成解析
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
John cannot get to the phone right now.
John现在没办法接电话。
Let me see. That would be $40.00 a day plus 38 cents a mile.
让我瞧瞧。一天40美元，每英里外加3角8分。
We were both lucky. I think she is a hero too!
我们俩都很走运。我认为她也是个英雄。