单词	either overt or covert
释义	either overt or covert 或明或暗
随便看	average estimated variance Average estimation Average evaporation average evaporation capacity average evoked potential average evoked response average excess average excess revenue method average exchange rate average excitation energy average excitation potential average excursion model average execution time of regions average expectancy average fixed costAFC average fixed cost afc average fixed cost curve average expectation average expenditure average expenditure pattern Average Expenditure per Sortie average expenses average extension of molecular chain average extent of burning average external volume