출처: http://www.bbc.com/news/health-36208003 Air pollution: Benefits of cycling and walking outweigh harms - study (outweigh: ~보다 더 크다)2 hours ago From the sectionHealthImage copyrightThinkstockThe health benefits of cycling and walking outweigh the harmful effects of air pollution, a study has suggested. Even in cities with high air pollution levels, the benefits..