People observe a moment of silence before a memorial walk in Chicago, the United States, on Sept. 11, 2021. A memorial walk through Chicago was organized on Saturday in memory of the 20th anniversary of 9/11 attacks and lives lost in Afghanistan. (Photo by Christopher Dilts/Xinhua)
U.S. marks 20th anniv. of 9/11 attacks
Source: Xinhua| 2021-09-12 07:22:37|Editor: huaxia