Anyone who has seen pictures of greatdogs of the past, and has compared them with pictures of current winning dogs cannot doubt that such changes have occurred in the past.
若是将过去优秀犬图片与现在的冠军犬图片放在一起进行比对，毫无疑问，这些变化已经在过去悄悄地发生了。
2
Vitamin B6 is great for improving the condition of dogs' and horses' coats.
维生素B6对改善狗和马的皮毛非常有效。
《柯林斯英汉双解大词典》
3
Dogs and cats become great companions, especially if they are raised at the same time.