Opening https://cn.wsj.com/articles/%E6%A8%99%E6%99%AE500%E6%8C%87%E6%95%B8%E6%96%99%E5%89%B5%E4%B8%8B2019%E5%B9%B4%E4%BB%A5%E4%BE%86%E6%9C%80%E4%BD%B3%E7%AC%AC%E4%B8%80%E5%AD%A3%E5%BA%A6%E8%A1%A8%E7%8F%BE-2394e3ce