Lots of China hawks say the deal could be rendered practically meaningless without the need of powerful enforcement steps. Such a lengthy timetable would allow it to be more difficult to punish Chinese violations by imposing new tariffs or increasing present kinds, said two of the officials. 财经频道: 共绘人类生态文明美丽画卷——从北京世园会看中国绿色发展的“世界贡献” https://liantong.com.tw/%e5%8f%b0%e5%8c%97%e6%88%bf%e5%b1%8b%e4%ba%8c%e8%83%8e%e8%b2%b8%e6%ac%be%e6%8c%87%e5%8d%97%ef%bc%9a%e8%81%af%e9%80%9a%e8%b2%b8%e5%8a%a9%e6%82%a8%e5%bf%ab%e9%80%9f%e5%8f%96%e5%be%97%e8%b3%87%e9%87%91/