名詞 bob:

1. a former monetary unit in Great Britain
   同義詞：British shilling, shilling
2. a hair style for women and children; a short haircut all around
3. a long racing sled (for 2 or more people) with a steering mechanism
   同義詞：bobsled, bobsleigh
4. a hanging weight, especially a metal ball on a string
5. a small float usually made of cork; attached to a fishing line
   同義詞：bobber, cork, bobfloat
6. a short or shortened tail of certain animals
   同義詞：bobtail, dock
7. a short abrupt inclination (as of the head)

動詞 bob:

1. move up and down repeatedly
2. ride a bobsled
   同義詞：bobsled
3. remove or shorten the tail of an animal
   同義詞：dock, tail
4. make a curtsy; usually done only by girls and women; as a sign of respect
   同義詞：curtsy
5. cut hair in the style of a bob

1. Bill runs quickly, Jack runs more quickly than Bill, and Bob runs most quickly of all.
   比爾跑得快，杰克跑得比比爾快，鮑伯在三者中跑得最快。
2. When Bob gets mad, you can't hold him down.
   當鮑勃生氣的時候，你都抑制不住他。
3. Bob lit up one of his best Havana.
   鮑勃點燃了一只他最好的哈瓦那煙。
4. Bob began to go into the details of the question.
   鮑勃開始深入調(diào)查這問題的細節(jié)。
5. Love to Bob, by the way.
   請便代向鮑勃問好。

bob

v.（動詞）
bobbed,bob.bing,bobs
v.tr.（及物動詞）
To hit lightly and quickly; tap.
輕拍：輕快地拍；輕叩
To cause to move up and down:
使…上下擺動：
例句：
bobbed my head in response to the question.
我點頭以回答問題

v.intr.（不及物動詞）
To move up and down:
上下移動：
例句：
a cork bobbing on the water.
軟木浮標在水中上下漂動

To grab at floating or hanging objects with the teeth:
咬住懸掛或漂浮的目標物：
例句：
bobbed for apples.
咬住懸掛的蘋果

To curtsy or bow.
行屈膝禮，鞠躬
n.（名詞）
A tap or light blow.
輕拍，輕敲
A quick, jerky movement of the head or body.
擺動：頭或身體的快速、忽動忽停的運動

<常用詞組>bob up
To appear or arise unexpectedly or suddenly.
突然出現(xiàn)：出其不意地突然出現(xiàn)或顯現(xiàn)
來源：
Middle English bobben
中古英語 bobben

bob
bob 2

n.（名詞）
A small, knoblike pendent object, such as a plumb bob.
懸垂物：小的球狀懸掛物，如鉛錘
A fishing float or cork.
魚漂，浮標：釣魚用的浮子或軟木
A small lock or curl of hair.
一束、一卷頭發(fā)
A woman`s or child`s short haircut.
短發(fā)：女子或孩童的短發(fā)
Informal Surgical shortening or reshaping of the nose.
【非正式用語】 鼻部整形術(shù)：外科手術(shù)中鼻子的整形或截短
The docked tail of a horse.
剪短的馬尾巴

A bobsled.
大雪橇，連橇
A bob skate.
雙刀溜冰鞋
v.（動詞）
bobbed,bob.bing,bobs
v.intr.（不及物動詞）
To fish with a bob.
用魚餌釣魚
v.tr.（及物動詞）
To cut short or reshape:
截短或整形：
例句：
bobbed her hair; had his nose bobbed.
剪短她的頭發(fā)；將他的鼻子整形

來源：
Middle English bobbe [cluster of fruit]
中古英語 bobbe [果串]

【引伸】
bob.ber
n.（名詞）

---------------另--------------
bob
bob 3

n.（名詞）
【復數(shù)】 bob 【多用于英國】
A shilling.
一先令

來源：
[Origin unknown]
[詞源不明]