Focused crawls are collections of frequently-updated webcrawl data from narrow (as opposed to broad or wide) web crawls, often focused on a single domain or subdomain.
I don't Know What is Your First Language and Don't Want to know Why You Select it. But As a Programmer i know, The Smile When You run Your First Code. After That We made Thousands of Mistake In our DEV life. We did Debug, Copycat or Googling But never Forget This First 2 Words. Let's Combine Our First Happiness In A single Page.