From VOA Learning English, this is the Economics Report. 美国之音慢速学英语节目,这里是经济报道. Many immigrants send small amounts of money - called "remittances" - home to friends and family. But those small amounts of money together add up to a lot, consider that there are about 200 million international migrants. 许多移民向家里的亲朋寄钱--汇寄,虽然数额不多,但是积少成多,要知道全球有2亿移民. In 2013, migrants around the world sent $400 billion back to their home countries, that is much more than official aid to many countries. For some nations, it is the biggest provider of foreign exchange. 2013年,全世界移民向国内家里汇款4000亿美元,远远超过多国的官方援助.对一些国家而言,这是外汇的主要来源. _________________________