命の授業❤
Added 2022-03-12 00:54:55 +0000 UTC***************************************************
文字なし差分です(No Text Diff)
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妊娠・出産のサイクルが20日なので授業に最適です！
Rats have a 20-day gestation/birth cycle, perfect for a health class!
![[SYK]](https://saketami.com/istorage/56232.jpg)
