犬牙交错的英文：
[Literal Meaning]
fang/cross
like fangs being overlapped

[解释]
交错：交叉。比喻交界线很曲折，像狗牙那样不整齐。

[Explanation]
interlocking

[例子]
岩洞里的石头犬牙交错，有着各种各样的形状。

[Example]
The rocks in the cave are interlocking and have various shapes.

The deep indentations of the Norwegian coastline
挪威海岸线的犬牙交错状.

The jagged rocks attracted my attention.
我被犬牙交错的岩石吸引了。

a war of jigsaw pattern
【军】犬牙交错的战争

The old man made mats by weaving bamboo slats together into a jigsaw-like pattern.
那位老人用竹条编成犬牙交错的图案,制作席子。