单词	Keystone Cops
释义	Keystone Cops, theˌKeystone ˈCops, the a group of characters in humorous US silent films. They are police officers who are very stupid and are always making silly mistakes. A group of people, especially police officers, are sometimes compared to the Keystone Cops if they fail to do something properly because they have made stupid mistakes.
随便看	mangle mangled mango mangrove mangy manhandle Manhattan Manhattan Project manhole manhood man-hour manhunt mania maniac maniacal maniacally manic manic depression manic depressive manicure manicured manicurist manifest manifestation Manifest Destiny

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