长问题放聊天，避免打断主讲。发文件时优先链接或会后补发。@ 全体要谨慎，紧急事项再 @ 组织者。聊天记录会后也可回看关键结论。
会议中聊天与文件：别打扰发言的用法
In-meeting chat and files without interrupting
Put longer questions in chat. Prefer links for files or send after the meeting. Use @everyone sparingly; @ the organizer for urgent items. Review chat later for key decisions.