研究人群天生就是聋子，从没有学过西班牙语或其它正式的符号语言，但是他们有一套能让他们与周围人沟通的手语系统。

Members of the group were born deaf and never learned Spanish or a formal sign language, but they have developed a gesture system to communicate with people around them.

youdao

其它的语言、数学和技术资料、音乐符号都可用布拉耶盲字来表示。

Modifications also exist for other languages, for mathematical and technical material, and for musical notation.

youdao

其它的语言、数学和技术资料、音乐符号都可用布拉耶盲字来表示。

Modifications also exist for other languages, for mathematical and technical material, and for musical notation.

youdao