单词	one-upmanship
释义	one-upmanship noun one-up·​man·​ship ˌwən-ˈəp-mən-ˌship  variants or less commonly one-upsmanship ˌwən-ˈəps-mən-ˌship  : the art or practice of outdoing or keeping one jump ahead of a friend or competitor engaged in a round of verbal one-upmanship Word History First Known Use 1952, in the meaning defined above
随便看	pulsating vacuole pulsation pulsation theory pulsational pulsations pulsative pulsatively pulsator pulsators pulsatory pulse pulse code modulation pulse deficit pulse duration modulation pulse family pulse frequency modulation pulse length modulation pulse modulation pulse oximeter pulse oximeters pulse oximetries pulse oximetry pulse position modulation pulse radar pulse rate

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