因为brooklyn 许多的教室美元天花板那，所以为了防止过多的学生在

Because brooklyn many classrooms dollar ceiling that, in order to prevent too many students wandering in the corridor leading to excessive noise, school regulations need to go to the bathroom or need to find guidance with a listing, and a classroom only 3-4 listed, meaning It is to limit the number of the number of corridors.

Because many of Brooklyn's classrooms have dollar ceilings, to prevent too many students from loitering in the hallways, the school rules require going to the bathroom or looking for a sign, while a classroom has only 3-4 listings, meaning limiting the number of people in the hallways.

Because Brooklyn has many classrooms with dollar ceiling, in order to prevent too many students from wandering in the corridor and causing too much noise, the school stipulates that they need to go to the bathroom or to find guidance with a sign, while a classroom only has 3-4 signs, which means to limit the number of people in the corridor.