不，我不知道房间号。

No, I don't know the room number.

《柯林斯英汉双解大词典》

这儿——这是房间号——是客栈里的，你知道吧！

Here—it's the number of a room—in a tavern, you know!

youdao

第二天，这两个男孩想起了“2号”，想着这一定是旅馆的那个房间号。

The next day, the two boys remembered the "Number two", thinking this must be the number of the room in the hotel.

youdao

Don't all come crashing into 1:00 because we don't have the room or the number of exams.

别再1：00的时候冲进来0,因为我们没有房间，或者考场号。

麻省理工公开课 - 固态化学导论课程节选