quartet
/kwɔːˈtet/(亦作quartette)
noun
1- a group of four people playing music or singing together四重奏; 四重唱。
1.1
- a composition for such a group四重奏曲; 四重唱曲。
1.2
- a set of four people or things四人组; 四件套。
词源
early 17th cent. （in the general sense 'set of four'）： from French quartette, from Italian quartetto, from quarto 'fourth'， from Latin quartus.