Most competition cars will only roll over if they hit an obstacle.大多数赛车只有在撞上障碍物时才会翻车。I roll over in my bed.我在床上翻身.Chock the barrel up or else it will roll over.用塞块塞住圆桶,不然它会滚过去....

roll over的音标：roll over的英式发音音标为：[rəul 'əuvə]roll over的美式发音音标为：[rol 'ovɚ]...

从（边上）滚下， （使）翻滚， （使）打滚，折...