catchpitn.集水坑catchv.赶上；抓住；捕捉；领会n.捕捉；捕获物；陷阱Catch up on my correspondence不妨抽时间放松一下catch of total fishing effort捕捞总努力量渔获量Catch up and surpass strategy赶超战略catching-up optimal solution急用最优解catch occasion by the forelock抓紧时机Catch him before he escapes.抓住他,别让他跑了。catch one's breath draw breathcatchwords on college campuses校园流行语catch the opponent off position打对方空挡Catch up on overdue paperwork.双子：赶紧处理逾期的工作吧。