You can't help Britain by overtaxing its people.向国民过重课税对英国于事无补。

a contralto who has overtaxed her voice用嗓过度的女低音

They push themselves far too hard and overtax their strength.他们过于拼命, 体力消耗严重。

I was afraid that he would overtax himself.恐怕他会把自己弄得过于劳累的。