User-agent: Sogou web spider/4.0 
Disallow: /

ser-agent: Sogou
Disallow: /

ser-agent: YodaoBot/1.0 
Disallow: /

User-agent: Yeti/1.0 
Disallow: /

User-agent: Yeti/0.01
Disallow: /

User-agent: Teemer
Disallow: /

User-agent: *
Disallow: /8/
Disallow: /en/