translation.en: We've changed all our light bulbs to energy-savers, and you should do the same thing, but changing all your light bulbs to energy-savers saves as much energy in a year as moving to a walkable city does in a week.
translation.zh: 我们把所有的灯泡换成了节能型 你也同样应该这么做 但换掉所有的灯泡 一年所节省的能源 只相当于搬进步行社区一周的效果