计算:[2x(x2y-xy2)+xy(xy-x2)]÷x2y.
原式=(2x3y-2x2y2+x2y2-x3y)÷x2y=(2x3y-x2y2)÷x2y=2x-y.
解释下列词语的含义。
①袅袅:_____________②灼灼:_____________
③寒砧:_____________④亭皋:_____________
⑤萧萧:_____________⑥疏朗:_____________
⑦歧路:_____________⑧冉冉:_____________
⑨迢远:_____________⑩相去无几:_____________