quartet
noun uk/kwɔːˈtet/ us/kwɔːrˈtet/
(GROUP)
[ C, + sing/pl verb ]四重奏乐团;四重唱组合
a group of four people who play musical instruments or sing as a group
A string quartet was playing Mozart. 一个弦乐四重奏乐团正在演奏莫扎特的乐曲。
(PIECE OF MUSIC)
[ C ]四重奏（曲）;四重唱（曲）
a piece of music written for four people
He has composed 18 quartets and 14 symphonies. 他谱写了18首四重奏和14首交响乐。