【東線?】今日は千日前線東線の開業日! https://osaka-metro-pm.com/2020/07/25/%e3%80%90%e6%9d%b1%e7%b7%9a%ef%bc%9f%e3%80%91%e4%bb%8a%e6%97%a5%e3%81%af%e5%8d%83%e6%97%a5%e5%89%8d%e7%b7%9a%e6%9d%b1%e7%b7%9a%e3%81%ae%e9%96%8b%e6%a5%ad%e6%97%a5%ef%bc%81/