Maybe Hachi escaped from a dog pound.

也许它是从收容所里逃出来的。

He looked mean as he threatened to send Sandy to the dog pound.

当他威胁要把桑迪送到狗收容所时，他看起来很刻薄。

So, a dog pound would be a place where lost dogs, for example, would be taken.

因此，dog pound 将是一个丢失的狗的地方，例如，将被带走。