你看过既隐晦又讽刺的笑话是什么？
推销员在推销自动刮脸机：“你看，只要投一个硬币进去之后，把脸伸进机器里，等一分钟就刮好了。”

顾客里有人问：“可是人的脸型是不一样的啊。”

推销员说：“第一次确实是这样的。”

An MIT linguistics professor was lecturing his class the other day. “InEnglish,” he said, “a double negative forms a positive. However, in somelanguages, such as Russian, a double negative remains a negative.

But there isn’t a single language, not one, in which a double positive canexpress a negative.”A voice from the back of the room piped up, “Yeah, right.”