词汇	單虛
释义	單虛 dān xū单薄空虚。单虚
随便看	producing cost theory producing countries producing country producing cow producing crops producing degree of reserves producing departmental charges account producing department cost producing departments producing depth producing discharge producing district Producing dust property Producing dust rule producing economy producing effeieney producing efficiency of labor producing effort Producing electricity by chemical action producing element producing energy Producing Evidence on Administrative Procedure producing factor producing females of parthenogenesis producing fish and turtles