20140220오늘의양식요약

20140220오늘의양식요약 In 2010, once tropical storm Agatha finished its course, a 200-footdeep sinkhole opened in downtown Guatemala City. This sinkhole caused the ground to collapse suddenly, sucking land, electrical poles, and a 3-story building into the depths of the earth. Though sinkholes can be devastating, the most universal and damaging sinkhole is the one that…

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