not on your puff

例句：

1. 1. I don't want to hear any more excusesfor not finishing the project on time.
   我不想听任何借口，不按时完成项目。
2. 2. Herefused to give up his idea and usedhis own reasons as a not on yourpuff.
   他拒绝放弃自己的想法，并以自己的理由作为借口。
3. 3. The teachertold us that we hadno excuse for not doing ourhomework on time.
   老师告诉我们，我们没有借口，不能按时完成作业。