中国将更严格地按照国际通行的贸易规则从事对外贸易活动。中国已经按照自己的承诺,从2000年7月起开始下调关税,已
经从2000年的15.3%降到12%,而且取消很多产品的进口配额许可证管理。

答案
China will engage in foreign trade activities more strictly in accordance with the prevailing international trade rules. In accordance with its commitment, China has started to reduce tariffs since July 2000
It has been reduced from 15.3% in 2000 to 12%, and the administration of import quotas and licenses for many products has been abolished.