Junwen Gu @junwen-gu Active 5 years, 8 months ago ActivityProfileSites 0Friends 0Groups 0 PersonalMentionsFavoritesFriendsGroups Show: — Everything — Updates New Sites Posts Comments Friendships New Groups Group Memberships Group Updates Junwen Gu's profile was updated 5 years, 11 months ago CourseDepartmentFaculty/Staff portfolioProjectStudent portfolio