https://www.ancient-origins.net/ancient-technology/150000-year-old-pipes-baffle-scientists-china-out-place-time-001783
ʂ̃TCgɃWv悤ƂĂ܂BXΏL̃NNbNĂ
UPLIFTōLȂő̌܂傤IKȉ{Ct܂I