Analysis of information sources in references of the Wikipedia article "工作犬" in Chinese language version.
a dog of suitable breed or training kept for its practical use, such as herding sheep, rather than as a pet or for showing
A dog trained to work with livestock.
a dog suitable by size, breeding, or training for useful work (such as draft or herding) especially as distinguished from one suitable primarily for pet, show, or sporting use
A dog trained to work with livestock.