Defective
What you think it means: That something is broken or missing pieces。你以为单词的含义是：某物碎了或缺了部分。What it really means: Simply that it's broken。单词的真正含义是：某物坏了。
You'll see this one a lot in Amazon reviews. People will say that their unit came defective because it was missing a screw or pieces in the box. That's actually incorrect. What they mean to say is that their product is deficient. It's missing pieces, it is not actually broken. The machine may work perfectly fine once the missing pieces have been re-added, which means that it actually isn't defective at all。你会在亚马逊网评上看到很多人用这个单词。人们会说网购的产品是defective（坏的），因为盒子里缺少某个螺丝钉或部件。其实这种用法是不对的。人们本想说产品是deficient（缺陷的），产品只是缺少部件，而不是坏了，如果装上缺少的部件，或许机器就能正常运转了，所以，产品根本就不是defective（坏的）。