Junwen Gu @junwen-gu Active 5 years, 9 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 6 years ago CourseDepartmentFaculty/Staff portfolioProjectStudent portfolio