You have to be deaf to understand.

你必须聋了才能明白。

youdao

It's wrong of you to be deaf to my advice.

你不听我的忠告是错误的。

youdao

But don't be deaf to hear it from the person who says it with his heart.

但是，如果有人真心说出这些话的时候，请不要装聋作哑。

youdao

Alexander Graham Bell believed one day machines would be invented to help deaf people hear and speak.

VOA: special.2010.05.14

To ensure good communication with the competitors, officials and referees must also be deaf.

VOA: standard.2009.09.10

Then, there were so many warning bells ringing you would have had to be deaf not to hear them.

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However, there also were those who appeared to be tone deaf to the issue, or had already taken a great deal of money just as the wheels were about to fall off of the wagon.

FORBES: Does Your Culture Value a Fair Deal?

But 4% of the moths they studied lacked such ears, and are thus reckoned to be deaf.

ECONOMIST: Listening for trouble