Hiragana were devloped by having a bunch of completely blind, deaf, and dumb Japanese people scribble things on pieces of paper while having no idea why they were doing so.

平假名是这样产生的：一群又瞎又聋又哑的日本人不知所以然的在纸上乱涂。

youdao

Helen Keller was born deaf, dumb and blind, certainly nothing to give her self-confidence.

海伦·凯勒天生聋哑失明，当然没什么让她自信。

youdao

She is blind, deaf and dumb, but she tried her best to know our world and bring light to people.

她双目失明，双耳失聪而且还是哑巴，但是她尽自己最大的努力去了解我们的世界，给人们带来光明。

youdao

It is increasingly obvious that digital computers are very bright, but deaf, dumb and blind.

FORBES: Computing Desire

The government decides to blame the deaf, dumb and blind kid and the deflator mouse, who saw the ruse all along.

FORBES: 'Deflator Mouse'

It was all working so well until that stupid mouse spilled the beans to the deaf, dumb and blind kid, who started buying gold.

FORBES: 'Deflator Mouse'