这意味着用户可预订今天到从今天开始算起90天内的任意日期。

This means that users can reserve that room for any date between today and 90 days from today.

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此特性允许管理员设置限制，规定用户可预订未来多久的房间。

This feature allows administrators to set a limit on how far into the future users can reserve a room.

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这里不需要进行任何复杂的取消/请求操作，更改可立即完成，而正在预订房间的其他任何人都没有机会占用此房间。

There is no cancel/request dance that has to occur; the changes are immediate with no chance of someone else reserving the room out from under the other users.

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