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Eastern Europe
東欧には美しい中世の城が多い。
Eastern Europe has many beautiful medieval castles.
東欧を旅した友人が写真を見せてくれた。
A friend who traveled through Eastern Europe showed me their photos.
冷戦終結後、東欧の多くの国が大きく変わった。
After the Cold War ended, many countries in Eastern Europe changed dramatically.