训练过的犬提醒主人对如门铃，烟雾警报器和电话铃声这些重要声音提高警觉。
The trained canines alert their owners to important sounds, such as doorbells, smoke alarms and ringing telephones.
这些代理可以是软件服务如apache Web服务器或物理服务如音响警报器。
These can be software services such as an Apache web server or physical services such as an audible alarm.
这些烟把警报器触响了。
应用推荐