US Secretary of Defense Rumsfeld is not only well known for his hawkish stance, but also known for his rap humor and unique style. The most famous is the speech on "Are there any weapons of mass destruction in Iraq" which won the "I don't know what to say" award from the British Language Institute in 2003-"I'm always interested in reports that I can't find Iraq's weapons of mass destruction, because we know that there are known things in the world, that is, there are some things we know we know, and we also know that there are unknown things, that is, there are some things we know we don't know. At the same time, there are still unknown things in the world that we don't know, that is to say, we don't know that we don't know. " . John Lister, spokesman of the 62-word Rumsfeld famous "Plain English Campaign", made the following comment: "We think we know what he means, but we don't know if we really know." ) Well, this sentence may not destroy Iraq. How much did China lose?