No kidding! If you don't keep up

来源: -竹- 于 2014-03-08 18:21:29 [] [旧帖] [给我悄悄话] 阅读数 : (55 bytes)
本帖于 2014-03-10 17:21:37 时间, 由普通用户 ~叶子~ 编辑
回答: In essence, "Good good study, day day up!" 由 冲浪潜水员 于 2014-03-08 15:41:18

the hard work, you'll end up having to catch up.

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