We're up to our ears in work.

我们工作忙得不可开交。

《牛津词典》

During the early morning ride from the suburb, we sat drowsily with our collars up to our ears, a cheerless and taciturn bunch.

在从郊区开往市区的早班车里，我们都昏昏欲睡地坐着，衣领直竖到耳朵。整个车厢里鸦雀无声。

youdao

As I was commiserating with him over our cell phones, it occurred to me that we were both holding up to our ears powerful general-purpose computers.

WSJ: Simplicity and Order for All | Innovator of the Year 2012 Technology

Inspiration perks up our ears and our muscles to keep going.

FORBES: Does Inspiration Ring the Register?

Saariaho, who has written chamber music, orchestral works and operas, was praised as "a modern maestro who opens up our ears and causes their anvils and stirrups to fall in love".

BBC: Youssou Ndour and Kaija Saariaho win Polar Music Prize