turn ,revolve区别

evolve :to sprin around or make sth spin around on a central point.
eg：The metak disc revolves at high speed.（他是在一个中心点来转的）
而turn：沿着中心点转动,to move around a central or fixed point,or make sth move in this way..
使旋转,使转圈.The wheel creaked as it turned.