You'd have a better chance of catching the train if you took a bus to the station instead of walking.
如果你不是步行而是乘公共汽车的话,那你就比较有可能赶上火车。
However, there is an even more insidious kind of pollution that particularly affects urban areas and invades our daily lives, and that is noise.
但是,还有一种更加隐蔽有害的污染,它专门影响城镇地区,侵袭我们的日常生活,那就是噪音。