Arrests Org The Untold Story Of Its Creation Julia Zia Sharon Lalong Magpapaiyak Sa "saving Grace "

为什么国外社交软件都设“已阅”“在线状态”功能，而国内则有“撤回”“隐身”功能？ whatsapp, messenger, instagram, snapchat都有“已阅”功能，大部分能显示对方是否在线、多久之前在线.

Caught Off Guard The Untold Story of Astonishing Arrests That Spark