夏日的夜晚，天上到处都是亮晶晶的星星，一轮弯月挂在空中。
Summer night, the sky is full of bright stars, a round of moon hanging in the air.
妞妞一个人在院子玩耍。突然，妞妞发现水盆中也有一轮月亮，妞妞感到惊讶，心想：“水盆里怎么会有月亮呢？”
Niu Niu is playing alone in the yard. Suddenly, Niu Niu finds that there is also a moon in the water basin. Niu Niu is surprised and thinks, "how can there be a moon in the water basin?"
妞妞自言自语地说：“一定是月亮太调皮了，想到地球上找小朋友们一起玩，一不小心滑到水盆里出不来了。”
Niuniu said to herself, "it must be that the moon is so naughty. When I think of looking for children to play on the earth, I can't get out of the water basin by accident."
妞妞决定把月亮捞上来送回家。妞妞刚把手伸到水盆里，月亮不见了，为什么呢？
Niuniu decides to bring up the moon and send it home. Niuniu just reached into the basin and the moon disappeared. Why?
不一会儿，月亮又在水盆里出现了，妞妞百思不解。
After a while, the moon appeared in the basin again. Niuniu was puzzled.
妞妞想了很久，想起光学知识，妞妞抬起头来看天空中的月亮，她恍然大悟，原来水盆中的月亮是天上月亮的倒影呀！
Niuniu thought for a long time, thinking of optical knowledge, Niuniu looked up to see the moon in the sky, she suddenly realized that the moon in the water basin was the reflection of the moon in the sky!
大自然真奇妙。
Nature is wonderful.