The vehicles will roll over onto thedrivers, or they'll hit a tree or another ATV and break an arm or a leg.
这种车会滚在开车人的身上，或者撞到树上，再或者撞在别的ATV上，造成开车的人胳膊和腿断裂。
2
Holding his cane, which was his extended arm, he would roll through the house yelling, "up, up, up!"
他拄着拐杖，那是他的伸展臂，他会跑遍房子大叫，“起来，起来！”
3
Once she is re-positioned comfortably, roll yourself back to your original position and you should find you have the freedom to remove your arm easily.