Nowadays the roles of husband and wife are not as ______ defined as before, especially when both parents work and earn money for the family.A.clearB.clearerC.clearlyD.more clearly
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C解析句意：当今对于“夫妻”的定义不像以前那样明确，尤其是双方都工作，都挣钱养家时。naturally自然地；economically在经济上，节约地，节俭地；especially特别，尤其；luckily幸运地。