主旋律zhǔxuánlǜ 1.指多声部演唱或演奏的音乐中,一个声部所唱或所奏的主要曲调,其他声部只起润色、丰富、烘托、补充的作用。{main melody; main theme within concerted songs or music, to which others are complementary} 2.〈比喻fig.〉主要精神;基本观点{theme; gist of the game}: 改革是这个报告的～。{The theme of this report is reform.}