rhythm section
noun [ C usually singular ] uk/ˈrɪð.əm ˌsek.ʃən/ us/ˈrɪð.əm ˌsek.ʃən/
（乐团的）节奏乐器组
the instruments in a dance or jazz group that give a strong beat to the music
The drums and double bass usually form the rhythm section of a jazz group. 爵士乐队里的节奏乐器组通常由鼓和低音提琴组成。
Compare: percussion