1. He bobbed a greeting without looking up from his work. 他频频点头致意，而目光没有离开他的工作。
2. Wow! Who is that lady next to Bob? 哇！鲍勃身旁的那位小姐是谁呀？
3. Bob, do you know tattoo? 鲍勃，你知道文身吗？
英英解释
n.
1. a former monetary unit in Great Britain
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
4. a hanging weight, especially a metal ball on a string
5. a small float usually made of cork; attached to a fishing line
6. a short or shortened tail of certain animals
7. a short abrupt inclination (as of the head) v.
1. move up and down repeatedly
2. ride a bobsled
3. remove or shorten the tail of an animal
4. make a curtsy; usually done only by girls and women; as a sign of respect
5. cut hair in the style of a bob
