Du Jiang Yanhas functioned for more than 2200 years even the _______ with _______ of 7.8 on the Richter scale in 2008 which happened near the dam did not _______ it.都江堰具有2200多年的历史，即使2008年发生在大坝附近的里氏7.8级的地震也没有摧毁它。