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[Children's Science May 2021] Kodomonokagaku In...

"Pit Dwelling Model" that understands the structure of the building Children's Science The May 2021 issue of "Interesting Craft Development Site Kodomonokagaku Research Institute" is the "Pit Dwelling Model" that...

[Children's Science May 2021] Kodomonokagaku In...

"Pit Dwelling Model" that understands the structure of the building Children's Science The May 2021 issue of "Interesting Craft Development Site Kodomonokagaku Research Institute" is the "Pit Dwelling Model" that...