环保高效英文

Facing the deterioration of the environment, using iPad to download materials, is in favor of saving paper, favorable for environmental protection, convenient and efficient

Save paper is Conducive to environmental protection, convenient and efficient, is expensive, people are likely to indulge in video games。

energy-saving,environment-friendly, high-efficient

To save paper, is conducive to environmental protection, convenience and high efficiency, is expensive, easy to make people addicted to computer games节约纸张，有利于环境保护，方便高效，价格昂贵，容易使人沉迷与电子游戏

energy saving、energy conservation eco-friendly efficient