Londoners often complain about the stifling heat on certain Underground lines - but soon that same heat will be used to keep people warm during the winter months.
원문출처 : https://www.cnn.com/2019/08/27/europe/london-underground-heat-winter-intl-scli/index.html
원문출처 : https://www.cnn.com/2019/08/27/europe/london-underground-heat-winter-intl-scli/index.html