翻译以下到中文 Why is a river rich? Because it has two banks

翻译以下到中文 Why is a river rich? Because it has two banks
翻译以下到中文 Why is a river rich? Because it has two banks

翻译以下到中文 Why is a river rich? Because it has two banks
为什么一条河水量充裕?因为它有两个水库.

为什么是一条河丰富？因为它有两家银行