Assertion: speaker's language | /r/Synonym | arterial language
Facets:
Source sentences:
text: A first language, native language or mother/father/parent tongue (also known as arterial language or L1), is a language that a person has been exposed to from birth or within the critical period.
text: A first language, native language or mother/father/parent tongue (also known as arterial language or L1), is a language that a person has been exposed to from birth or within the critical period.