抓住,掛在…上;理解,受歡迎,流行開來
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"