祸根

This flood will be the ruin of the harvest.

这洪水将是有的祸根。

That car is always breaking down! It’s the bane of my life.

这车老是拋锚！真是我的祸根。

The unjust peace agreement set the scene for another war.

这项不公平的和约为另一战争埋下了祸根。