“经济奇迹”常见的英文表达是 "economic miracle" 。
例如:
China's rapid development in the past few decades is often regarded as an economic miracle. (中国过去几十年的快速发展常被视为一个经济奇迹。)
此外,偶尔也能见到 "economic wonder" 这种表达,不过 “economic miracle” 使用更为普遍和正式。