this poor man is from chu.he is reading a book about science.a friend is walking by. 这个可怜的汉子来自楚国，他在读一本科学书。一位朋友从旁走过。 friend: hi, what are you doing? 朋友：喂，你在干嘛呢？ man of chu: i’m reading huai nan zi.it is about an insect called mantis. 楚人：我在读《淮南子》，里面讲昆虫与螳螂。 friend: i know about the mantis.the mantis eats small insects! 朋友：我知道螳螂，螳螂吃小昆虫。 man of chu: yes, it does.but how does it catch the small insects? 楚人：是的，是这样的。但它怎样捕捉小昆虫呢？ friend: i don’t know. 朋友：我不知道。 man of chu: it holds a leaf in front of its body.then it is invisible!the insects can’t see it! 楚人：它把一片叶子放在身体前面，这样，它隐蔽起来了，昆虫就看不见它了。 friend: really? that’s very interesting. 朋友：真的吗？那倒是挺有趣的。 man of chu: i’m going to try it. 楚人：我也想试一下。 friend: really