清涼可口的西瓜人人都愛吃，我也不例外，但是我一次吃西瓜的`時候，卻有了一個發(fā)現(xiàn)。

　　Everyone likes to eat the cool and delicious watermelon, and I am no exception, but when I eat watermelon once, I have a discovery.

　　今年夏天，媽媽買了一個大西瓜。這個西瓜又大又圓，活像一個大皮球。我們迫不及待地把它切開，我發(fā)現(xiàn)它的皮是綠油油的，里邊卻紅彤彤的。這是為什么呢?于是我放下手中的西瓜，去查《少兒百科全書》，終于我找到了答案。

　　This summer, my mother bought a big watermelon. The watermelon is big and round, like a big ball. We can't wait to cut it open. I find its skin is green, but it's red inside. Why? So I put down my watermelon and went to look up the Encyclopedia of children, and finally I found the answer.

　　原來，西瓜的表皮有葉綠素，為了吸收陽光。但它里面吸收了陽光，成熟后就變成紅色的了。

　　Originally, watermelon's epidermis has chlorophyll, in order to absorb sunlight. But it absorbs sunlight and turns red when it matures.

　　一個普通的西瓜里都有這么多的知識!生活中往往隱藏著無窮的知識，等著善于觀察，努力探究的人去發(fā)現(xiàn)。

　　There are so many knowledge in a common watermelon! Life often hides infinite knowledge, waiting for those who are good at observation and hard to explore to find out.