举个例子，欧盟在2050年实现温室气体减排80%的目标必然意味着在未来短短几十年内对联盟境内各类基础设施进行全面升级改造。
For example, the European Union’s goal of achieving an 80% reduction in greenhouse gas emissions by 2050 implies a complete overhaul of EU infrastructure in just a few decades.