Science In Action - Deaf Nicaraguan Children invent their own Sign Language - Â鶹¹ÙÍøÊ×Ò³Èë¿Ú Sounds

Science In Action - Deaf Nicaraguan Children invent their own Sign Language - Â鶹¹ÙÍøÊ×Ò³Èë¿Ú Sounds


Deaf Nicaraguan Children invent their own Sign Language

Deaf Nicaraguan children invented a sign language by themselves

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