示例:
Nannan: Hello, this is Nannan speaking. May I speak to Liangliang?
Liang liang: Hello, Nannan. This is Liangliang.
Nannan:I can't go to your birthday party today. Liangliang:What's the matter?
Nannan:I have a cold and a fever.
Liangliang:I'm sorry to hear that. Take care. Can I come to see you this afternoon?
Nannan:Sure.
