The air about the equator rises, and flows poleward in both directions.赤道周围的空气上升，并向南北两极流动。The earth revolves around the axis that joins the North and South Poles.地球围绕贯穿南北两极的地轴自转。The Earth rotates on an axis between the north and south poles.地球绕着南北两极之间的地轴自转。