He ran down the hill, the backpack jolting from side to side on his back.他奔跑着下山,背包在他背上左右晃荡。We ran for cover as shells dropped all around us.周围都有炮弹落下,我们奔跑着寻找地方躲避。The lady decided that it would not be dignified to run for the bus.那位女士认定,奔跑着去赶公共汽车会有失尊严。Kids were dashing across the playground chasing a ball.孩子们在操场上奔跑着抢一个球。