(单词翻译:单击)
That is such a lame excuse! 意思是“这是一个很牵强的借口。”“这个借口太牵强了”lame excuse意思是“蹩脚的借口”。
"I don't know enough to do it on my own" is a lame excuse as well.
"我不懂那么多，自己做不来”也是一个牵强的理由
