they are different, you can copy a sentence from the top post and do a search on that blog, you won't get search result,
引用:
作者: spongebob
http://www.bbc.co.uk/blogs/olympics/2008/08/beijing_over_and_out_follow_th.html ("http://www.bbc.co.uk/blogs/olympics/2008/08/beijing_over_and_out_fol...
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