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When I was in Seoul last week, I took the subway with my students several times. We noticed a few differences from the subways in Japan. In Seoul, they play interesting music when a train is approaching. Another difference is that the subway cars in Seoul are wider than those in Japan. This may be why so many people walk up and down the cars. People were always trying to walk past us. Were they looking for empty seats, or did they just want to get off at another door? I don’t know, but it doesn’t usually happen in Japan. Most passengers just get on and stay where they are. (by Prof. Douglas Jarrell)
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