应用: Teams
任务: 打开Teams，修改明天上午9点的会议时间，改为后天上午9点，会议时长修改为1小时，然后向Facebook群组“AI enthusiasts”发送变更通知post，内容附加变更后的时间和会议时长。发送post完成后，将其Pin to featured。
操作步骤:
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