blue.grass
n.（名词）Also blue grass Any of various grasses of the genusPoa, including many valuable lawn and pasture plants, such as Kentucky bluegrass, and also some weeds. 也作 blue grass 蓝草：早熟禾 属的各种草，包括许多有价值的草坪和牧场植物，如肯塔基蓝草，也指同样一些种子 Music A type of folk music that originated in the southern United States, typically played on banjos and guitars and characterized by rapid tempos and jazzlike improvisation.【音乐】 蓝草音乐：一种起源于美国南方的民间音乐，通常用班卓琴或吉他演奏，特色为音乐轻快和象爵士乐那样即兴演奏
