v.上下疾动；剪短；行屈膝礼；欺骗；窃取
n.上下快速摆动；短发，波波头；钟摆；浮子；屈膝礼；一束；先令；大雪橇；鲍勃（人名）
Tag ends of memories bob up now and then. 记忆中的零碎小事不时地涌入脑海。
A boxer learns to bob and weave. 拳击手学习急速扭头和闪身。
The girls began to bob their hair to be in style. 姑娘们开始把她们的头发剪成时髦的短发。
Don't forget to bob to the princess when you see her. 见到公主别忘了行屈膝礼。
n.长撬；大雪橇
乘大雪橇,滑大雪橇运动
有舵雪橇运动员
