They decided not to let their new dog run loose, confining it to a fenced enclosure during the day.

他们决定不让他们的新狗乱跑，白天把它关在有围栏的围圈里。

《柯林斯英汉双解大词典》

Did the dog run after the pedlar?

那条狗是不是追赶小贩了？

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They keep their animals — including grand champions of the Central Florida Rabbit Breeders Show — in an air-conditioned barn, and take them out often to stretch their giant limbs on a dog run.

他们将这些巨型兔子放在带空调的车库中饲养，还经常带它们出去溜达，活动活动它们巨大的四肢。

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Outside, cars would go by, or a dog would run across the lawn.

NEWYORKER: The Other Place

If I have to slow right down because I am not sure if a dog will run out in front of me or not, that is a nuisance.

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It's gonna happen wrong, and the guy's gonna be late because his dog got run over, and he's going to fix the wrong pipe, and when he takes it apart he's gonna say, 'Oops, the whole plumbing system's gonna have to go and dah dah dah and etc. etc. etc.

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