Problem solving process: There is a big shell on the screen. According to common sense, there should be pearls in the shell, but there are no eyes, so the answer is as blind as a bat. (as blind as a bat)

Explanation: Being as blind as a bat is an idiom, pronounced as y ǒ u y m n w ú zh ū, which means no eyeballs. Used to scold others for being blind and not seeing the greatness or importance of someone or something.

Source: Yuan Anonymous's "Case" is the first fold: "As the saying goes, the sage is wise, the fool is stupid, just like that, it is difficult to be the same, how can it be better than you?"

Synonym: turn a blind eye

Antonym: bright eye.

Extended data:

As blind as a bat, explanation: beads, eyes. Used to describe that you or others cannot see the greatness or importance of someone or something. It is also used to scold yourself or others. Generally used as predicate and attribute.

Source: Yuan Anonymous's "Case" is the first fold: "As the saying goes, the sage is wise, the fool is stupid, just like that, it is difficult to be the same, how can it be better than you?"

Example:

Master, my disciples are as blind as a bat. I don't know the master, but there are many collisions. I hope you can forgive me. (Ming, Wu Cheng'en, The Journey to the West, the 22nd time)

I used you as blind as a bat!

References:

Baidu encyclopedia-as blind as a bat