Concentrators
(concentrator 的复数) n. 集中者, 浓缩器, 选矿机\\n[计] 集线器, 集中器
🗣️ 情景例句
He has no command over himself.
他不能克制自己。
He's behind the times.
他跟不上时代了。
There are many different varieties of bee.
有很多不同种类的蜂。