各位观众晚上好!今天《天下一家》栏目有幸请到了郑教授做我们的嘉宾。郑教授,您好!
gèwèi guānzhòng wǎnshang hǎo !jīntiān 《tiānxià yī jiā 》lánmù yǒuxìng qǐngdào le Zhèng jiàoshòu zuò wǒmen de jiābīn 。Zhèng jiàoshòu ,nínhǎo !
Good evening, ladies and gentlemen! On today's "One Big Family" program we have the fortune of being joined by a special guest, Professor Zheng. Hello, Professor Zheng.