1. V-T/V-I If you concentrate on something, or concentrate your mind on it, you give all your attention to it. 集中 (心思); 專(zhuān)心

It was up to him to concentrate on his studies and make something of himself. 他能否專(zhuān)心學(xué)習(xí)竝有所成就取決於他自己。

At work you need to be able to concentrate. 工作時(shí)你要能專(zhuān)心。

2. V-T If something is concentrated in an area, it is all there rather than being spread around. 集中[usu passive]

Italy's industrial districts are concentrated in its north-central and northeastern regions. 意大利的工業(yè)區(qū)集中在該國(guó)中北部和東北部地區(qū)。