bumphn.卫生纸；纸；难懂的公文bumpv.碰撞；颠簸而行；提高n.肿块；撞击；表面隆起adv.突然的；猛烈的bump at bridge-head桥头跳车bumping post indicator车档表示器Bump at head of bridge桥头跳车bumping at bridge head桥头跳车bump - prone property冲击地压倾向性bumping molding machine震实造型机bump-tail instability尾部隆起不稳定性bumping moulding machine震实造型机bumping at bridge-head桥头跳车Bumped into other person撞到他人身上