Learnability  

可学性

A suggested defining property of human language (contrasting with the properties of other semiotic systems), referring to the way any language can in principle be acquired by any normal child given the opportunity to do so.

有人认为是人类语言的一个定义特征（与其他符号系统的特征对立），指任何一个正常儿童只要给予机会原则上就可习得任何一种语言。