watchdog

watchdog汉语翻译：
n. 看门狗, 监察人
【化】监控设备; 监视器英语解释：
名词 watchdog:

a guardian or defender against theft or illegal practices or waste

a dog trained to guard property同义词：guard dog

详细解释：
watch.dog
n.（名词）
A dog trained to guard people or property.
看家狗：训练用来保护人或财物的狗
One who serves as a guardian or protector against waste, loss, or illegal practices.
监察者：防止浪费、丢失或不法行为的监察或防护者
【引伸】
watch.dog.
v.（动词）