energy-efficientˌenergy-efˈficient adjective 
using as little energy as possible: 
How can we make our homes more energy-efficient?
using as little energy as possible: How can we make our homes more energy-efficient?
| 单词 | energy-efficient |
| 释义 | energy-efficientˌenergy-efˈficient adjective using as little energy as possible: How can we make our homes more energy-efficient? |
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