Yizhuo Xie

JoyChain

Want to keep fit? Have trouble persevering? You need a partner! 5 kinds of sports everyday, pick those you like and get in touch with...

August 30, 2015 By Yizhuo Xie

JoyLink

-This is a virtual broadcaster.-People within 500 meters can now chat easily no matter where you are.-Students in the library can discuss...

March 29, 2015 By Yizhuo Xie