星期二接了俩小姑娘,出来发现正在下太阳雨。往家赶的路上,就发现东边的天空挂着好大一条彩虹。我们一路走一路欣赏,当在一个路口等红灯时,我一边比划,一边问她俩,“问什么彩虹是这个样子?而不是那个样子?”
Annie:“I don’t know"
Jessica: "Silly, then it will be a smile face. rainbow suppose to be like that. "
Me: "why it’s so sad?"
Jessica: "I don’t know."
Annie: "me either".
Me: maybe because th sky just cried, it is still sad?
I am not silly any more, cause I just found a good way to explain why the rainbow is always sad. 
