has about one-third the carbon footprint of the average suburban dweller, mostly because suburbanites drive a lot more, and living in detached buildings, you have that much more exterior surface to leak energy out of.
大约是市郊居民水平的 三分之一， 主要是因为居住在市郊的居民开车更多 而且他们住在相对比较分离的建筑里 你有那么多的外表面 会有能量流失．