But enterprising North Koreans and Chinese soon breached this barrier. An underground money brokering system was devised to allow North Koreans to send their hard-earned money home.

• 不过，富于冒险心的朝鲜人和中国人很快就突破了这一障碍。人们通过地下中间人系统让朝鲜人将辛苦赚来的钱汇往家中。