He is deaf to your earnest advice.

他听不进你的忠言。

《新英汉大辞典》

I have lived some thirty years on this planet, and I have yet to hear the first syllable of valuable or even earnest advice from my seniors.

我在这星球上活了三十年，从我的老前辈那儿，我还没听到可称得上有价值的或热情忠告的第一个音节，他们什么也没有告诉我，可能也告诉不了我什么中肯的话。

youdao

In earnest mum made the effort to alter on dad's advice., but it appeared that it was uncomfortable for her to expose feelings.

妈妈也曾在我父亲的苦口婆心之下真正拭着改变，但很明显，把自己的情感暴露出来总叫她感到不自在。

youdao

And how can you offer advice that appears more earnest and is better researched than others they might come across, all while representing you in the best possible light?

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