brown·stone /-ˌston/
赤褐色砂石,赤褐色砂石建築(a.)上流社會的,富有階級的
Brown·stone n.
1. A dark variety of sandstone, much used for building purposes.
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brownstone
n 1: a reddish brown sandstone; used in buildings
2: a row house built of brownstone; reddish brown in color