CNBC 快讯 6月20日 14:58 美国廉航模式陷入瓶颈：Spirit破产折射全服务航司结构性优势 The budget airline model in the U.S. is running out of runway Spirit's bankruptcy as United and Delta fly high suggests there's more to success in airline industry than low fares, an… SAVE UAL DAL ITA 军工 XLI 工业 FG 75 读报告 →