“good good study, day day up”是什么意思?

“good good study, day day up”是什么意思? good study,day day up! “good good study,day day up!” 译成中文是什么意思? good good study day day up good good study,day day up. good good study ,day day up Good good study,day day up Good good study Day day up 意思 good good study up up day Good good study day day Good good Study,Day day 怎样向外国人解释good good study day day up