资料来源 : pyDict

抓住,挂在…上;理解,受欢迎,流行开来

资料来源 : WordNet®

catch on
     v 1: understand, usually after some initial difficulty; "She
          didn't know what her classmates were plotting but
          finally caught on" [syn: {get wise}, {get onto}, {tumble},
           {latch on}, {cotton on}, {twig}, {get it}]
     2: become popular; "This fashion caught on in paris"