A: I heard that your second elder brother had a son.
B: Yes, he is delirious with joy these days.
A: It looks like you are very happy, too
B: Of course.
A: Tīng shuō nǐ èr gē bào érzi le.
B: Duì, zhè jǐ tiān tā gāoxìng dé bùdéliǎo.
A: Kàn yàngzi nǐ yě hěn gāoxìng.
B: Nà shì dāngrán a.