大多数的爱狗人士大都对幼犬滥育厂里的糟糕状况略有所知，声名狼藉的繁育员和他的不规范的繁育设施。

Most dog lovers know about the often horrid conditions of puppy mills, the unregulated breeding facilities owned by disreputable breeders.

youdao

不过，很多T恤衫和保险杠上写着反对幼犬滥育的爱狗人士，也根本不知道大多数宠物店里出售的幼犬也同样来自那里。

But many of these same dog aficionados, who have t-shirts and bumper stickers denouncing puppy mills, don't know that most puppies sold at pet stores come from there.

youdao

不过，很多T恤衫和保险杠上写着反对幼犬滥育的爱狗人士，也根本不知道大多数宠物店里出售的幼犬也同样来自那里。

But many of these same dog aficionados, who have t-shirts and bumper stickers denouncing puppy mills, don't know that most puppies sold at pet stores come from there.

youdao