求翻译：我们骑自行车或步行上学 。在学校内 ，我们节约用电、用水 。使用纸张时 ，我们双面书写 ，节约用纸 ，做到低碳生活 。当我们购物时，使用环保购物袋，而且循环利用。是什么意思？

We bike or walk to school. In school, we conserve electricity and water. Use paper, we write both sides, saving paper, so that low-carbon life. When shopping, use reusable shopping bags, and recycling.

We are riding a bicycle or walk to school. In the school and we are saving electricity and water. Use of paper, we double-sided write, saving paper, so that low-carbon living. When we go shopping, when using reusable shopping bags, and recycling.

We ride the bicycle or the walk go to school.In the school, we use electricity frugal, the water used.When uses the paper, our two-sided writing, save with the paper, achieves the low-carbon life.When our shopping, use environmental protection shopping bag, moreover circulation use.

We go to school by bike or on foot. In schools, we save electricity, water. When using paper, we write on both sides, saving paper, low-carbon life. When we were shopping, using reusable shopping bags, and recycling.

We go to school by bike or on foot. In schools, we save electricity, water. When using paper, we write on both sides, saving paper, low-carbon life. When we were shopping, using reusable shopping bags, and recycling.