jeje1122345 想要
13 years ago
拉拉拉~機概客超好玩~ 來發噗拉
ㄚ 雞
13 years ago
認真學習啊~resistant!!
moonight1973
13 years ago
chain rule
Arisa Wang
13 years ago
嘖嘖 不好吧...(unsure) ((雖然我都是微積分課噗
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