kink

a kink in the road.

路上弯曲。

He had a kink about it.

他对这件事有一种想法。

though the system is making some headway, there are still some kinks to iron out.

虽然该系统正取得一定进展，但仍有许多困难需要解决。

There are still a few kinks to be worked out of the plan before we start production.

在投产前, 计划还有些缺陷需要解决。