bolter

n. 退出党派的人, 脱缰的马, 筛面粉的机器
【机】 筛

bolter

n.（名词）
A horse given to bolting.
脱缰马
One who gives up membership in or withdraws support from a political party.
脱党者：放弃党籍或拒绝支持某一政党的人

bolter
bolter 2

n.（名词）
A machine used for sifting, especially for sifting flour.
筛粉机：用于筛粉的机器，尤用于筛选面粉
One who operates a sifting machine.
筛粉者：操作筛粉机的人