多人轮流改稿时，先打开「修订」。别人的增删会留痕迹，便于对照。讨论性意见放进「批注」，不要直接覆盖别人的关键句。合并前约定由一人负责「接受 / 拒绝」修订，避免互相覆盖。
和同学改同一篇文档：修订与批注怎么用
Editing one doc with classmates: track changes & comments
When several people edit, turn on Track Changes so edits stay visible. Put discussion in Comments instead of overwriting key sentences. Assign one person to accept/reject before final merge.