今天我们要学的词是 obsolete. Obsolete 形容词，有陈旧的，过时的意思。U.S. President-elect Donald Trump called NATO obsolete but said it was still very important to him. 美国当选总统川普称，北约早已过时，但对他来说还是十分重要。The Department of Homeland Security decided to scrap an obsolete program once used to track people from countries with sizeable Arab and Muslim populations. 美国国土安全部决定取消一个过时的项目，该项目原来被用来追踪从阿拉伯和穆斯林国家来到美国的人。好的，我们今天学习的词是 obsolete, obsolete, obsolete...