plead ignorance

英文造句：

1. Pleading ignorance of the law won't help you if you are caught.
   假若因犯法被抓住，藉口不知是犯法亦無濟於事。
2. No one can plead ignorance of a subject any longer, for there are countless do- it- yourself publications.
   再沒有任何人以不懂某事為理由而辯解了，因為有數不清的介紹“自己動手”的出版物。