This trend is catching on with/among college students.这种趋势在大学生中流行开来。

Soccer is finally starting to catch on in America.足球终于开始在美国流行起来。

Once you start playing the game, the kids will catch on pretty quickly.一旦你开始玩这个游戏，孩子们很快就会明白怎么玩。

It took her a while to catch on, but she eventually got the joke.她想了好一会儿，但最终还是弄懂了这个笑话。