大家好!我是陈老师!欢迎大家来这里和老师交流交流~多多灌水哦!
大家能到这网址参加脑筋急转弯的比赛。幸运的话,还有奖品哦!
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Dear Lasallians, please use your given name when tagging. Anonymous tags will be labelled as junk, and IP reported. Thank you for making this place junk-free.
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