The words were earnest but they fell on deaf ears.

言者谆谆， 听者藐藐。

《新英汉大辞典》

But the new approach he promised has not materialised. His calls for a gentler touch have fallen on deaf ears.

但他承诺的新方案还没有成形，他所倡导的怀柔政策更是成了聋子的耳朵——摆设。

youdao

But the appeal had generally fallen on deaf ears, despite broad press coverage and correspondence with Member Nations and financial institutions.

尽管有广泛的新闻报道及与成员国和金融机构的书信往来，但这些呼吁被置若罔闻。

youdao

The realization rarely happens overnight because oftentimes the employee has offered to take on more challenging assignments, but that falls on deaf ears.

FORBES: How to Tell if You're Stuck in a Dead-End Job, And What To Do If You Are

Ipswich might have had a penalty between the two Coventry goals after Ben Turner appeared to bring down Lee Martin but their appeals fell on deaf ears.

BBC: SPORT | Football | Championship | Coventry 2-1 Ipswich

But her praise fell on deaf ears in our house.

NPR: Cherries on Top