Keyword: 1980%E3%80%91%E3%80%90%E7%84%A1%E7%A7%98%E8%94%B5%E5%85%AC%E9%96%8B%EF%BC%92%E6%9C%AC%E5%90%88%E8%A8%88%EF%BC%91%EF%BC%96%EF%BC%90%E5%88%86%E3%80%91%E6%9F%90%E8%8A%B8%E8%83%BD%E4%BA%8B%E5%8B%99%E6%89%80%E3%81%8B%E3%82%89%E3%81%AE%E4%BE%9D%E9%A0%BC%E3%81%A7%E6%9E%95%E8%A6%81%E5%93%A1%E3%82%92%E6%95%99%E8%82%B2%E3%81%99%E3%82%8B%E3%81%8C%E3%80%81%E5%82%B5%E6%A8%A9%E6%9C%AA%E6%89%95%E3%81%84%E3%81%A7%E7%84%A1%E6%96%AD%E5%85%AC%E9%96%8B%E6%B1%BA%E5%AE%9A, 1980%e3%80%91%e3%80%90%e7%84%a1%e7%a7%98%e8%94%b5%e5%85%ac%e9%96%8b%ef%bc%92%e6%9c%ac%e5%90%88%e8%a8%88%ef%bc%91%ef%bc%96%ef%bc%90%e5%88%86%e3%80%91%e6%9f%90%e8%8a%b8%e8%83%bd%e4%ba%8b%e5%8b%99%e6%89%80%e3%81%8b%e3%82%89%e3%81%ae%e4%be%9d%e9%a0%bc%e3%81%a7%e6%9e%95%e8%a6%81%e5%93%a1%e3%82%92%e6%95%99%e8%82%b2%e3%81%99%e3%82%8b%e3%81%8c%e3%80%81%e5%82%b5%e6%a8%a9%e6%9c%aa%e6%89%95%e3%81%84%e3%81%a7%e7%84%a1%e6%96%ad%e5%85%ac%e9%96%8b%e6%b1%ba%e5%ae%9a