今天我们要学的词是 keynote speech. Keynote speech 主题演讲。Apple's CEO Tim Cook delivered the keynote speech at Apple's Worldwide Developers Conference. 苹果公司首席执行官库克在苹果公司全球开发者大会上发表主题演讲。Cisco's outgoing CEO John Chambers predicted in his keynote speech at its customer conference that more than one-third of businesses today will not survive the next 10 years. 思科即将离任的首席执行官钱伯斯在思科用户大会上发表主题演讲，预计现在的公司三分之一以上十年内都会消失。好的，今天我们学习的词是 keynote speech, keynote speech, keynote speech...