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德国在第二次世界大战以后,每10年举行一次国际园艺展览,每两年举行一次全国园艺展览,由各城市轮流主办,每届都为主办城市留下了一个永久性的美丽公园。
After World War II, Germany held an international horticultural exhibition every 10 years and a national horticultural exhibition every two years. It was hosted by cities and took turns hosting a permanent beautiful park for each host city.