全家人来到了动物园,爸爸和妈妈一组,姐姐和弟弟一组。妈妈看见有马戏团表演就想过去看,但是爸爸好像有点不乐意,怎么回事呢? Listen Read Learn Mom: Hey, look, there is a circus show over there. Dad: I'm not in the mood. Mom: It's the circus. Dad: I don'...