Efficiencies
n. 效率, 效能( efficiency的复数形式 )
🗣️ 情景例句
I don't know haw that could have happened.
我不知道怎么会发生那样的事。
A little labour,much health.
适量的劳动大有益于健康。
Not at all, dear. It was a pleasure.
不必客气，亲爱的。这样我很高兴。