#教辅书变废为废教辅书是对纸张的浪费。今天起俺一天至少一次往上涂鸦打卡。丑，但是不至于祸害白纸。
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#教辅书变废为废
QOTO: Question Others to Teach Ourselves An inclusive, Academic Freedom, instance All cultures welcome. Hate speech and harassment strictly forbidden.
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#教辅书变废为废