bump[bʌmp]

v.&n. 碰，撞，颠簸，肿胀 adv.突然
◇ bump off 杀死，用力推开
bump up against遇到…
‖ bump shield 冲撞防护
bumping race 追撞比赛
bumping tournament 梯次比赛
bumpy[ˈbʌmpi]adj.（道路等）颠簸的，崎岖不平的
bumpy air 颠簸空气
bumpy flow 涡流
bumpy road 崎岖不平的路
bumpily adv.bumpiness n.bumper n. 减震器，缓冲器