今天我们要学的词是 christen. Christen是指婴儿受洗时给他起名，作为进入基督教会的标志。Christened 就是命名。The revised free trade agreement between the United States, Canada and Mexico, christened USMCA, has big implications for Donald Trump's trade war with China. 修订后的美国、加拿大和墨西哥之间的自由贸易协定被命名为USMCA，它对特朗普与中国的贸易战有重大喻意。Congressman Emanuel Cleaver delivered his speech for the christening of the USS Kansas City in a special ceremony held in Mobile Alabama. 国会议员克利弗在阿拉巴马州莫比尔举行的堪萨斯城号航空母舰命名仪式上发表了讲话。