草案文件显示，欧盟委员会将在六月提出一项法律提案，计划到2027年底禁止根据现有合同进口剩余的俄罗斯天然气和液化天然气。

Core Point - The European Commission plans to propose a legal measure in June to ban the import of remaining Russian natural gas and liquefied natural gas (LNG) under existing contracts by the end of 2027 [1] Group 1 - The proposal aims to phase out reliance on Russian energy sources in response to geopolitical tensions [1] - The legal measure is part of a broader strategy to enhance energy security within the EU [1] - The timeline set for the ban is by the end of 2027, indicating a significant shift in energy policy [1]