guest Moderator 管理成员 注册 2002-10-07 消息 402,441 荣誉分数 76 声望点数 0 2013-05-23 #1 A U.S.-based school safety consultant is to speak to school and emergency officials in Ottawa about barricades and evacuations as a part of lockdowns.
A U.S.-based school safety consultant is to speak to school and emergency officials in Ottawa about barricades and evacuations as a part of lockdowns.
