When I first received the invitation to speak at your commencement ceremony,I thought back to my own graduation many,many years ago and you know what?是什么意思_When I first received the invitation to speak at your commencement ceremony,I thought back to my own graduation many,many years ago and you know what?在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句