单词	concentric
释义	concentricconcentric /kənˈsɛntrɪk/ adjective Etymology ETYMOLOGYconcentric Origin: 1300-1400 Medieval Latin concentricus, from Latin com- ( ➔ COM-) + centrum center math, geometry concentric circles have their centers at the same point → eccentric
随便看	cutthroat cutting cutting board cutting edge cutting-edge cutting room cut-up Cuvier, Georges cuz C & W cwt. -cy cyan cyanide cyber- cyberbully cyberbullying cybercafé cybercrime cyberfraud cyberia cybernetic cybernetics cyberpunk cyber rage

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