Ditches are dug next to the wire poles to direct the dogs' pee into near-by sewage, and prevent staining the road.
Ditches are dug next to the wire poles to direct the dogs' pee into near-by sewage, and prevent staining the road.
电线杆旁边设计沟槽，狗儿小解后流至水沟中，不会在路面上留下痕迹。