如今，页岩革命将美国从能源进口国变为能源出口国，北美有望在未来十年中实现自给，而中国越来越依赖进口能源。
Now the shale revolution has transformed it from an energy importer to an exporter, and North America may be self-sufficient in the coming decade at the same time that China is becoming more dependent on energy imports.