defective

有缺陷的部件导致整个机器故障。

The ___defective part caused the whole machine to fail.

由于一个有缺陷的基因，这种疾病被遗传了。

Due to a ___defective gene, the condition was inherited.

制造商因货物有缺陷召回了这批产品。

The manufacturer recalled the batch due to ___defective goods.