Second, through improving energy efficiency of all appliances and equipment used in building — for space heating and cooling, water heating, lighting, cooking, working, and entertainment.

第二，可以提高建筑物内使用的所有电器和设备的能效，可能用于供暖、制冷、热水系统、照明、烹饪、工作和娱乐。

Buildings are a leading  source of greenhouse gas emissions and take energy for heating, lighting, cooling  and more – and the bigger the building, the higher these demands tend to get.

建筑物是温室气体排放的主要来源，需要能源来供暖、照明、制冷等——建筑物越大，这些需求往往就越高。