童言童語 Baby Talk

P: 媽媽唱盪鞦千. (Mama sing swing song)
PM: 媽媽不知道什麼盪鞦千歌. (Mama doesn't know any swing song.)
P: ♪ 盪鞦千, 盪鞦千, 我要盪鞦千. ♪ (Swing, swing, I want to go on a swing!)

Guess her language ability is good enough now that she's able to make up lyrics to songs!