crass /ˈkræs/
(a.)粗魯的,愚鈍的,粗糙的,非常的
Crass a. Gross; thick; dense; coarse; not elaborated or refined. “Crass and fumid exhalations.” --Sir. T. Browne. “Crass ignorance” --Cudworth.
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crass
adj : (of persons) so unrefined as to be lacking in discrimination
and sensibility