用高等数学“铲雪”！ https://mp.weixin.qq.com/s/9MrI6dAUy8zvOvCVAe_x4Q (水城百事)

by 匿名, Tuesday, January 26, 2021, 16:54

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再转发微信文章 :-P

by 匿名, Tuesday, January 26, 2021, 16:55 @ 匿名

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