Because calls for service and violent crime have decreased, police officers now have time for patrolling neighborhoods.

由于服务需求和暴力犯罪活动的减少，警察现在有时间巡逻社区。

If you are not sure, call student services for help.

如果您不确定，请致电学生服务部寻求帮助。

And if you don't answer at all, it'll wait a beat and then it will call emergency services for you, which is a pretty nice feature.

如果你完全不回答它，它就会等待一段时间，然后自动帮你呼叫紧急服务，这是一个很好的功能。