He must feel as we all feel when trying to explain to a thickheaded child that two times zero is zero and not two .

他一定会像我们在试图向一个笨孩子解释二乘以零等于零而不等于二时的感觉一样。

Although this fellow impenetrably thickheaded disposition is eccentric and unreasonable .

虽然这家伙冥顽不灵性格乖张。

Remember , he 'll probably be just like you when you were a teenager : he 'll be stubborn , thickheaded and he 'll think he knows everything .

记住，他很可能跟你小时候一样：又倔又幼稚的以为自己什么都明白了。