Efficiencies
n. 效率, 效能( efficiency的復(fù)數(shù)形式 )
??? 情景例句
But if I have my tonsils out tomorrow,
但是我如果明天切除扁桃腺，
Wendy, I'd like you to meet my brother Sam.
溫迪，我來(lái)向你介紹一下我的兄弟薩姆。
There is no need to say anything to the other worker.
你沒(méi)有必要跟那個(gè)工友說(shuō)什么。