[noobj., with adverbial of direction]make a quick, short movement up and down 上下移动;颠簸 I could see his ginger head bobbing about. 我可以看到他姜黄色的脑袋在上下移动。 the boat bobbed up and down. 那艘船不住地颠簸。 ■[with obj.]cause (something) to make such a movement 使上下移动,使颠簸 she bobbed her head. 她点了点头。 ■[noobj., with adverbial of direction]make a sudden move in a particular direction so as to appear or disappear 闪动,突然出现(或消失) a lady bobbed up from beneath the counter. 一位女士突然从柜台底下冒了出来。 ■[noobj.]move up and down briefly in a curtsy 微微鞠躬(或屈膝)行礼
noun
a quick, short movement up and down 抖动,颠簸 she could only manage a slight bob of her head. 她最多只能轻轻地点一下头。 ■a brief curtsy 屈膝礼,鞠躬礼
常用词组 bob and weave
make rapid bodily movements up and down and from side to side, for example as an evasive tactic by a boxer 身体左挡右闪
bob for apples
try to catch floating or hanging apples with one's mouth alone, as a game 咬苹果游戏(用嘴巴咬住浮动或悬挂着的苹果的游戏)
语源
late Middle English : of unknown origin
bob2 noun
a style in which the hair is cut short and evenly all round so that it hangs above the shoulders 周围剪成一样长度的短发(发式)
a weight on a pendulum, plumb line, or kite-tail 钟摆,摆锤,测锤;风筝坠子
a bobsleigh 大雪橇,连橇
a short line at or towards the end of a stanza 诗节末尾的短行
(bobbed, bobbing)
[with obj.][usu. as adj. bobbed]cut (someone's hair) in a bob 把(头发)剪成周围一样长度的短发样式
[noobj.]ride on a bobsleigh 乘大雪橇
语源
late Middle English (denoting a bunch or cluster): of unknown origin
bob3 (复同单)
(Brit. informal)a shilling (英,非正式)(一)先令 ■used with reference to a moderately large but unspecified amount of money 相当多的一笔钱 those vases are worth a few bob. 那些花瓶值不少钱哪。
语源
late 18th cent.: of unknown origin
bob4 noun
a change of order in bell-ringing 变序鸣钟 ■used in names of change-ringing methods [用于变序鸣钟各种名称] plain bob. 普通变序鸣钟。 bob minor. 小变序鸣钟。
语源
late 17th cent.: perhaps connected with bobin the noun sense 'sudden movement up and down'