bluegrass /ˈbluːˌgræs/ Brit /ˈbluːˌgrɑːs/ noun /ˈbluːˌgræs/ Brit /ˈbluːˌgrɑːs/
noun
Learner's definition of BLUEGRASS
[noncount]
: a type of traditional American music that is played on stringed instruments (such as banjos and fiddles)蓝草音乐(一种传统的美国音乐,用班卓琴和小提琴等弦乐器演奏)