True, they will only ---- batteries and not actual stools, and with their advent the current explosion of dog therapy spas and nutrition centers will diminish.

• 的确，它们仅仅会“拉”电池而不是真大便，而且，随着它们的到来，当前火爆的狗治疗温泉，狗营养中心将会逐渐消失。