Invertibility
[計] 可逆性
??? 情景例句
Oh, sure I do. Hi, Abe.
噢，我當然記得。嗨， Abe。
Mr. Jones is the author of the controversial book.
瓊斯先生寫出了一本有爭議的書。
Happy birthday! he said. Here's your present.
“生日快樂！”他說，“這是給你的禮物。”