单词	black gold mud
释义	black gold mud 黑金粉
随便看	positive muon positive muons positive mutant positive mutation positive-nagative ambivalent quotient positive nature and critical nature positivenegative positive-negative positive/negative acknowledge procedure positive negative action positive-negative action positive negative ambivalent quotient positive-negative ambivalent quotient positive-negative azeotrope positive/negative bi-layer resist positive negative bipolar positive-negative bipolar positive-negative conflict positive-negative continuum of proximity positive negative control positive-negative control positive/negative control positive negative controller positive-negative controller positive negative double selection