求翻译：不准带刀进学校，不准打架，不准私自下河游泳，放学后及时回家，遇到紧急情况要及时报告老师或警察。是什么意思？

Knives are not allowed into the school, not allowed to fight, are not allowed to secretly lower river swimming, time to go home after school, to promptly report cases of emergency teachers or police.

not allowed to carry a knife fight, will not be allowed to enter the school without permission are not allowed in the river swimming, and after school time in the event of an emergency, home school teachers or police to timely report.

Does not permit the belt knife to enter the school, does not permit to fight, does not permit secretly under the river swimming, after is on vacation from school goes home promptly, encounters the emergency case to have to report teacher or the police promptly.

Not allowed to carry a knife to school, no fighting, no private swim in the River, get home after school, in case of emergency to report in a timely manner the teacher or the police.

Allowed take a knife into school, no fighting allowed private River swim, after school get home, emergency to timely report teacher or policeman.