Traditional Culture Encyclopedia - Hotel reservation - What does the room number mean?

What does the room number mean?

Generally refers to the outside accommodation, hotels or restaurants, hotels, etc.

Their rooms are numbered.

For example, the rooms on the first floor are 10 1, 103, 105, 107,,,

On the other side are 102, 106, 108,,, 4, which cannot be used because others are afraid of this number.

The third floor is 30 1, 303,,, 302, 306,,