User-agent: *
Crawl-delay: 20 

User-agent: googlebot
Crawl-delay: 120

User-agent: msnbot
Crawl-delay: 120

User-agent: teoma
Crawl-delay: 120

User-agent: slurp
Crawl-delay: 120

User-agent: NaverBot
Disallow: /

User-agent: MJ12bot
Disallow: /

User-agent: Baiduspider
Disallow: /

User-agent: Sosospider
Disallow: /

User-agent: LexxeBot
Disallow: /