broad- brush粗枝大叶的
broad-brush structure泛泛性的结构
A broad-brush cutter parts圆刀断布机零件
ADJ（形容词） A broad-brush approach, strategy, or solution deals with a problem in a general way rather than concentrating on details. 粗线条的 [usu ADJ n]
He's giving a broad-brush approach to the subject.
他正在对这一学科进行概述。