nerd

中文： 书呆子、宅男

1. A person who is intellectual but generally introverted. (slang) · The bullies used to call him a nerd at school.
2. One who has an intense, obsessive interest in something. (informal) · a computer nerd· a comic-book nerd
3. A member of a subculture revolving around intellectualism, technology, video games, fantasy and science fiction, comic books and assorted media. (informal)
4. One who is stupid and socially inept or unattractive; a social outcast. (dated, informal)

复数 nerds