...brushes with long, flexible bristles.是什么意思？

...brushes with long, flexible bristles.

鬃毛长而柔韧的毛笔

brushes

n. 擦( brush的名词复数 )，刷子，小冲突，灌木丛；

例句
His frequent brushes with death are the stuff of legend among the press.
他频繁地与死神擦肩而过，成了报章杂志的热门猛料。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

long

adj. 长的，长时间的，冗长的，过长的，长音的；adv. 长久地，始终，遥远地；n. 长时间，长时期，[语]长音节，（服装的）长尺寸，长裤；vi. 渴望，极想；

例句
As long as most people are happy to have the monarchy, the abolitionist position is an arrogant fantasy.
只要大多数人还乐意保留君主制，废除它的主张就是痴人说梦。

flexible

adj. 灵活的，易弯曲的，柔韧的，易被说服的；

例句
...a flexible and convenient way of paying for business expenses...
灵活而方便的业务费用支付方式

bristles

n. 短而硬的毛发，刷子毛( bristle的名词复数 )；

例句
He rubbed his hands over the soft bristles of his crew cut.
他用双手摸了摸他平头上柔软的短发。