Why is a river very rich?

Why is a river very rich? Why do we say that a river is very why is a river rich? Why is a river very rich?為什么河這么富有?英语 加 汉语 的 回答. 谜语:why is a river so rich? English RiddleWhy is a river very rich? why do we say that a river is very rich?what will she do if a man-eating tiger is running after her why is a river so rich?iq题 (脑筋急转弯)Why is a river rich?用汉语回答. why is a river rich到底是什么啊! Why is the river rich? Why the river is very rich?这是IQ题哦 小心! The Changjiang River is a very （long） river快啊! why is the Yellow River yellow? why the river is so rich 一到英语智力题Why is a river rich?Because it has two ______. 翻译以下到中文 Why is a river rich? Because it has two banks He likes playing ( )the river.But there ( )a river near his new house.He is not very happy.