Brownstone

['braʊnstəʊn] or ['braʊn'ston]

解释:

(noun.) a row house built of brownstone; reddish brown in color.

(noun.) a reddish brown sandstone; used in buildings.

艾莉森校对--From WordNet

解释:

(n.) A dark variety of sandstone, much used for building purposes.

艾迪整理