“经济一体化”常见的英文表达是 “economic integration” 。
例如：
Regional economic integration has become a significant trend in the global economy.（区域经济一体化已成为全球经济的一个重要趋势。）
Economic integration can bring about many benefits, such as increased trade and investment.（经济一体化能带来诸多好处，比如促进贸易和投资增长 。）