笨笨今天从早到晚都咧着嘴嘿嘿地乐，一不留神就把前不久洞开的门牙孔露了出来。那笨笨为啥这般得意呢？告诉你，那是因为平日里上课时总是“上当受骗”的笨笨今天脱胎换骨，没有重蹈覆辙，一眼就识破了山羊老师设下的机关，机智圆满地解决了问题。上课铃刚停，山羊老师跟往常? Stupid today grinned from morning till night, hey music, inadvertently took the hole opened shortly before the incisors exposed. So stupid so why so proud? Tell you that it is because the stupid stupid that is always “deceived” in class during the course of today is completely reborn and did not repeat the same mistakes. At a glance, I saw the organs set up by the goat teacher and solved the problem satisfactorily. Bell just stopped, goat teacher with the usual?