fault的衍生词是：
faulty
美 /ˈfɔːlti/英 /ˈfɔːlti/
adj.有错误的；有缺点的
比较级 faultier
最高级 faultiest
双语例句：
I sent my car to repair shop for faulty brakes.
因为刹车故障我把车送到了修理店。
Faulty products are equal to scrap.有缺陷的产品等于废品。
Obviously his explanation is logically faulty.
显然他的解释是逻辑错误的。
