ADJ-GRADED
(借口、论点、评论等)站不住脚的;蹩脚的;拙劣的
If you describe something, for example an excuse, argument, or remark, as lame, you mean that it is poor or weak.
例句
He mumbled some lame excuse about having gone to sleep...
他含含糊糊地找了个蹩脚的借口,想要解释自己为什么睡着了。
All our theories sound pretty lame.
我们的理论似乎全都站不住脚。