You are viewing a single comment's thread from:RE: 7 World’s Continents Photo Challenge – chance to win 150 SBD - 7大洲照片挑戰——贏取150 SBD的機會！View the full contextmarc-allaria (74)in #cn • 7 years ago Hello, if I want to participate to this challenge, what do I have to do? Is there hashtag to write?