Is covermark easy to use What does hd mean?

banner广告1

Hot: Is the ninth mainland fun? What toys do dogs like best?, Is whale meat delicious? Why didn't anyone buy Emgrand gs, Is sulphur soap good for washing your face? What is the problem with dry eyes?, Is whale meat delicious? What toys do dogs like best?, Is sulphur soap good for washing your face? Why didn't anyone buy Emgrand gs, Is the ninth mainland fun? What is the problem with dry eyes?, Is sulphur soap good for washing your face? What toys do dogs like best?, Is the ninth mainland fun? Why didn't anyone buy Emgrand gs, Is whale meat delicious? What is the problem with dry eyes?.

这里是正文头部广告

Question Is covermark easy to use and What does hd mean?