常用于短语Bob’s your uncle，指易如反掌。Bob是人名Robert的昵称，代指任何有权有势人物。类同中国“我爸是李刚。”
bob 上下摆动
拟声词，模仿小球在水中上下浮动的声音。
英文词源
bob (v.1)
"move with a short, jerking motion," late 14c., probably connected to Middle English bobben "to strike, beat" (late 13c.), perhaps of echoic origin. Another early sense was "to make a fool of, cheat" (early 14c.). Related: Bobbed; bobbing. The sense in bobbing for apples (or cherries) recorded by 1799.
bob (n.2)
"short hair," 1680s, attested 1570s in sense of "a horse's tail cut short," from earlier bobbe "cluster" (as of leaves), mid-14c., a northern word, perhaps of Celtic origin (compare Irish baban "tassel, cluster," Gaelic babag). Used over the years in various senses connected by the notion of "round, hanging mass," such as "weight at the end of a line" (1650s). The hair sense was revived with a shift in women's styles early 20c. (verb 1918, noun 1920). Related words include bobby pin, bobby sox, bobsled, bobcat.
bob (n.1)
"act of bobbing," 1540s, from bob (v.1). As a slang word for "shilling" it is attested from 1789, but the signification is unknown.
实用例句
1. Bob died of a heart attack, brought on by his lifestyle.
鲍勃死于由他的生活方式引起的心脏病突发。
来自柯林斯例句
2. Bob slid from his chair and lay prone on the floor.
鲍勃从椅子上滑下来，趴在了地板上。
来自柯林斯例句
3. Bob tried the door. To his surprise it opened.
鲍勃试着推了推门。令他吃惊的是，门竟然开了。
来自柯林斯例句
4. Bob Marley provided them with their first taste of Reggae music.
鲍勃·马利让他们首次接触到了雷盖音乐。
来自柯林斯例句
5. He weaved around the tables to where she sat with Bob.