请输入您要查询的英文单词：
单词
voluntary
释义
voluntary
2
NOUN
C
TECHNICAL
/ˈvɒlənt(ə)ri/
a short piece of music that is usually played before a longer piece （通常于长曲前演奏的）自由调
a
a short piece of organ music played at church （教堂里管风琴演奏的）仪式终始曲