双语简讯：A police officer was killed and five people wounded when a man took medical staff hostage and opened fire at a Pennsylvania hospital, officials said. ▶ 译文（AI翻译） 官方称，宾夕法尼亚州一家医院发生人质劫持事件，一名男子挟持医护人员并开枪，导致一名警察死亡，五人受伤。 ▶ 来源：美国CNN ▶ 更多：点击本账号头像查看文章列表，所有文章是按照媒体机构分类整理的双语资讯(BBC, CNN, ABC, NewYork Times, WSJ ...)，每日更新，敬请关注！
