grist to the mill
给磨坊带来了磨粉的原料或利益，引申为给某事物带来好处或利益
书面·形容有利资源
英文释义
valuable or useful material or information that can be used to one's advantage
例句
All this criticism is just grist to the mill for his argument.
典故来源
源自磨坊将谷物磨成粉，比喻任何材料都能被利用。