father and son snake are out for a nice afternoon slither. The son asks, "Dad，are we poisonous snakes?" The father replies proudly, "Yes son, we are rattler snakes! Why do you ask son?" "Because DAD, I just bit my tongue!!"

一个阳光明媚的下午，蛇父亲和蛇儿子出去散步。儿子问：“爸爸，我们是毒蛇吗？”父亲得意的答道：“当然了，孩子，我们是响尾蛇啊！为什么这么问呢？”“因为，我刚把舌头咬破了！”