改革开放以来翻译成英语，怎么翻

"改革开放以来"Since China's reform and opening up双语例句：改革开放以来，中国企业与国外、海外企业积极开展经济技术合作，取得了巨大成就。Since China's reform and opening up, Chinese enterprises have vigorously undertaken Ecotech with overseas...