俚语：Speak of the devil 说曹操，曹操到

　　定义：an expression of greeting given to someone who had been the topic of conversation immediately before or just at the time of appearing on the scene打招呼的用语，用于刚谈论完某人或正谈论某人而他恰好出现时。

　　例句：Speak of the devil ! Hi, Mark! We were just talking about you.说人人到!嗨，马克!我们刚才还在说你。