一天铅笔在桌子上写字，它看见橡皮坐在一旁没事干的样子，就对它说：“你怎么这么懒啊？难道你就这么闲坐在这里吗？” “不是懒，我是在这里看你有没有写错字。”橡皮说。 “我又没有写过错字，所以请你走开！”铅笔很不高兴的说。 橡皮没有再理会铅笔。就在这时，铅笔写错了字，它心里很着急，但又不好意思找橡皮帮忙。 “每个人都是有弱点的，让我来帮你把错字擦掉吧！”橡皮主动对铅笔说。 “噢，原来是这样。”铅笔终于明白了。 “让我们互相学习，互相取长补短，并做个好朋友，好吗？”橡皮开心的说。 “好！让我们成为好朋友。”铅笔高兴地回答。 从此，人们总能看到铅笔的头上戴着用橡皮做成的帽子。
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