Two months earlier, Powell's team – an unusual assortment of trappers, suspected fugitives, Native American scouts, former editors and ex-convicts – had burdened four wooden rowing boats with everything they needed for their journey, including a number of sophisticated scientific instruments. With a crowd of well-wishers gathered around them, they raised their little American flag and pushed off into the rush of water below.
อ่านต่อเพิ่มเติม โรงเรียนบ้านนาเหนือ
สาระสำคัญ โรคอ้วน