今天我们要学的词是 airtight。Airtight 严密的，无懈可击的。Our team played airtight defense tonight. 我们球队今天晚上的防守无懈可击。His argument appeared virtually airtight. 他的论证听上去滴水不漏。Security for the Super Bowl in New Orleans was airtight. 在新奥尔良举行的美式足球超级杯上，球场保安滴水不漏。The U.S. Anti-doping agency had an airtight case against cyclist Lance Armstrong. 美国反兴奋剂机构对自行车手兰斯.阿姆斯特朗的指控无可置疑。好的，今天我们学习的词是 airtight, airtight, airtight…