mother tongue - Tìm kiếm | Laban Dictionary - Từ điển Anh - Việt, Việt - Anh

Tra từ

Anh-Việt Anh-Anh

mother tongue

US UK

noun

plural ~ tongues

[count] :the language that a person learns to speak first

He speaks English fluently but his mother tongue [=native language, first language] is Chinese.