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Line 7, which was submerged in water for less than two years after its opening, has had frequent underwater train accidents since then. Let's take a look at the underwater train accidents on Line 7. #Line7 #Taereung-ip Station #Flooding 00:00 Intro 00:07 Taeereung-ip Station flooding accident 05:41 Line 7 flooding accidents that have continued since then 06:35 A complicated line, Line 7