「石の上にも三年」の意味と例文 https://noteolsen.com/2021/07/01/%e3%80%8c%e7%9f%b3%e3%81%ae%e4%b8%8a%e3%81%ab%e3%82%82%e4%b8%89%e5%b9%b4%e3%80%8d%e3%81%ae%e6%84%8f%e5%91%b3%e3%81%a8%e4%be%8b%e6%96%87/