energy efficient and environment-friendly的用法和樣例：
例句
- High-speed EMU has a bright future as the whole world is striving for energy conservation and environment protection.
當前，世界在倡導節能環保技術，高速鐵路動車組大有前途。 - Passive regulating indoor humidity with hygroscopic materials is an energy-saving and environment friendly method.
利用調濕材料被動調節房間濕度是一種節能環保的方法。
