安全问题

• safety issue
• security issue
• safety problem

例句

1. 校长没完没了地谈论交通安全问题。
   The principal dwelt on traffic safety in his talk.
2. 有现在起我在实验室里考虑实验问题，在街上考虑安全问题。
   From now on I'll pay attention to my experiment in the lab and to my safety on the street.
3. 你可不能忽视安全问题！
   You can't just disregard the security problem!