User-agent: *
Disallow: /search-keyword

User-Agent: YoudaoBot
Disallow: /

User-agent: dotbot
Disallow: /

User-agent: gonzo
Disallow: /

User-agent: cityreview
Disallow: /

User-agent: Exabot
Disallow: *

User-agent: spbot
Disallow: *

User-agent: Twiceler
Disallow: *