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（pinterest看了约等于在学了，读懂图纸约等于自己也能制造图纸（打飞
@portokadoo 图四怎么看都像脊椎动物的胚胎(我完了
@satsuki 不愧是科学家！确实像！
QOTO: Question Others to Teach Ourselves An inclusive, Academic Freedom, instance All cultures welcome. Hate speech and harassment strictly forbidden.
