His job is to keep pigs on a farm.

他的工作是在农场上养猪。

youdao

Her job is to keep pigs on the farm.

她的工作是在农场养猪。

youdao

This means that fewer medications are needed to keep pigs healthy.

也就是说只需少量的药物就可保持猪的健康。

youdao

For reasons of animal welfare, farmers can no longer keep pigs confined in stalls.

ECONOMIST: A pig of a problem

In the U.S., partly in response to complaints by animal-rights activists, handlers at slaughterhouses are supposed to keep pigs calm by moving them along in small groups, and the animals are required to be rendered unconscious and unable to feel pain before they are killed.

WSJ: What China Can Learn From America's Hot Dogs

If the family is rich enough, they may keep a couple of pigs underneath.

CNN: ASIANOW - TIME Asia | Visions of China: Mengla