Apple added an artificial pond that, just like The Ring building, also happens to be a perfect circle.

苹果公司还盖了一个人工水池，就像圆环的建筑一样，也是一个完美的圆形。

Many Australians keep these pet carp in artificial ponds in their backyards.

许多澳大利亚人将这些宠物鲤鱼饲养在后院的人工池塘中。