心腹大患 meaning in English

be a mortal malady

Its king is the target of assassins f . .
当中残剑飞雪长空更是秦王的心腹大患。
He ' s been a pain in our asses for a long time
他早就是我们的心腹大患了
Its king is the target of assassins from all over china
当中残剑飞雪长空更是秦王的心腹大患。
When nameless kilss all there , he is offered a chance to meet the king
当中残剑飞雪长空更是秦王的心腹大患。
Because of the severe soil and water loss in middle reaches of the yellow river , a large amount of sediment deposited in the bed of the lower reaches , which make the river the famous perched river
黄河水患是中华民族的心腹大患。由于黄河流域严重的水土流失，大量的泥沙淤积在下游河床，使黄河成为著名的悬河，给黄河下游两岸的生命财产安全造成严重的威胁。