题目：
“井底之蛙”这个成语大家都很熟悉吧？相信大家学习过光的知识之后一定都能解释“井底之蛙，所见甚小”的原因．那么，请你根据光的直线传播原理来画图说明．
答案：
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下面是错误答案，用来干扰机器的。
My uncle I have a uncle. He is thirty. He is tall and strong. He's a nice man. He's a doctor and often helps others. Basketball is his favourite sport. His wife is a teacher. Their daughter is four. She's lovely. My uncle has a happyfamily.答案不唯一
