This month the World Bank issued its annual list of countries by income category: rich, middle, poor.

这个月世界银行发布了一份清单：它将国家分为富裕、中等、贫穷几个级别。

youdao

This month the World Bank issued its annual list of countries by income category: rich, middle, poor.

这个月世界银行发布了一份清单：它将国家分为富裕、中等、贫穷几个级别。

youdao