Since Helen was deaf and blind, she learned to communicate via a manual alphabet.

自从Helen不幸地失明和失聪后，她学会了用手语字母表交流。

youdao

Since Helen was deaf and blind, she learned to communicate via a manual alphabet.

自从Helen不幸地失明和失聪后，她学会了用手语字母表交流。

youdao