单词	molecular mass
释义	molecular mass noun : the mass of a molecule that is equal to the sum of the masses of all the atoms contained in the molecule Word History First Known Use 1873, in the meaning defined above
随便看	boths bothy botnet boto Botocudo botocudos botogenin botonnée botonée botos Botox botoxed botoxing Botoşani botry- botrychia Botrychium botrychiums Botrydium botryllid Botryllus botryo- botryogen botryoidal botryoidder

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