If you couldn't attend either of the concerts and are currently gnashing your teeth at having missed out, don't despair.

如果你两场音乐会都去不了而为此咬牙切齿的话，别绝望。

《柯林斯英汉双解大词典》

He'll be gnashing his teeth when he hears that we lost the contract.

他要是听说我们丢了这份合同，准会气得咬牙切齿。

《牛津词典》

Andthis leads to "weeping and gnashing of teeth," i.e. sorrow and depression.

这将导致“哭泣和咬牙切齿”，就是指悲伤和绝望。

youdao

They're not bidden to be cast out in to utter darkness where there's weeping and gnashing of teeth.

没有因为无所事事而受惩罚,他们没有被罚去充满哭泣声和牙齿的无尽的黑暗里。

耶鲁公开课 - 弥尔顿课程节选

There shall be weeping and gnashing of teeth.

那里会有嚎啕的声音以及等着咀嚼食物的牙齿。

耶鲁公开课 - 弥尔顿课程节选

January is the traditional time of year for teeth gnashing from rail passengers as fares rise again.

BBC: Have train fares gone up or down since British Rail?

Ghosn (rhymes with loan) cut his teeth gnashing costs at tire-maker Michelin and later Renault in Europe.

CNN: Business Buzz

Since then, there has been much teeth-gnashing about what do in order to stop banks needing to be bailed out again.

BBC: Pounds and euros