'网址', 'user type' => '用户类型', 'admin' => '管理员', 'student' => '学生', 'teacher' => '老师', 'problem uploader' => '题目上传者', 'problem manager' => '题目管理员', 'contest judger' => '比赛评测员', 'contest only' => '仅比赛用户', 'online' => '在线', 'offline' => '离线', 'last active at' => '最后活动于', ];