词汇	maintenance study
释义	maintenance study 维持性学习
随便看	degree of additioncondensation degree of addition condensation degree of addition-condensation degree of adhesion Degree of a differential form degree of a differen-tial form degree of a divisor degree of a divisor class degree of admission degree of adsorption degree of aeration degree of a face degree of affection degree of a field degree of aggregation degree of aggregation for the population degree of aging degree of agitation degree of agreement degree of agremeent degree of agricultural mechanization degree of alcoholization degree of alcoholysis Degree of Aleoholization degree of algebraic equation