phrasal-verb
trickle down
从富人到贫穷人逐渐扩展;间接地使低层阶级受益
Meaning
to spread gradually from the wealthy to the less wealthy; to benefit lower classes indirectly
Example
Many economists argue that wealth doesn’t always **trickle down** to the poor.
许多经济学家认为财富并不总是**trickle down**到穷人。