Do you know when to use these numbers?

Do you want to have a safe (安全的) life?

Please come and have a look.

There are some public (公众的, 公共的) numbers. Do you know when to use these numbers? 110 is a number for calling the police when (当……时候) you have met some illegal (违法的) things. 119 is a number for a fire (火灾) accident (事故). 120 is a number for asking for medical (医疗的) help when somebody is seriously ill (重病) or hurt (受伤). Please do not dial (拨号) these numbers for fun (乐趣).

You must remember these numbers.