An MIT linguistics professor was lecturing his class the other day. "In English," he said, "a double negative forms a positive. However, in some languages, such as Russian, a double negative remains a negative. But there isn't a single language, not one, in which a double positive can express a negative."
「但是,」他接著說:「沒有一種語言,可以用雙重肯定來表示否定。」
這時教室後方傳來一句話:「喔,是喔。」
你沒上過可以不用這樣嘲諷