? What is foolproof? What are the allusions?

The source of the allusion: Yi's Nie Yinniang: "A year later, (Yin Niang) will stab the ape hole. Idiom meaning: loss: error; Fault. Very well described; It won't go wrong. Also known as "foolproof" and "foolproof". Idiom phonetic notation: ㄅㄞ?ㄨㄧㄕㄧㄧㄧㄧㄧㄧㄧㄧㄧㄧㄧㄧㄧㄧㄧㄧㄧㄧ125 Describe being confident and not making mistakes. Idiom structure: partial formal idiom pronunciation: First, you can't read "Yi". Idiom discrimination: if you lose it, you can't write "vector" There is no danger of any mistakes.