defect

发动机的缺陷导致了产品召回。

The ___defect in the engine led to a recall.

一个机械缺陷导致了飞机坠毁。

A mechanical ___defect caused the plane to crash.

这件衬衫因为有一个小瑕疵而打折出售。

This shirt is on sale because it has a small ___defect.