breach

敌军在城墙的防御工事上打开了一个突破口。

The enemy army created a ___breach in the defensive wall.

这家公司因违反合同条款而面临法律诉讼。

The company faced legal action due to a ___breach of contract terms.

这次误会在他们之间造成了难以修复的裂痕。

The misunderstanding caused a serious ___breach in their relationship.