Meaning of cội nguồn | Babel Free
/[koj˧˨ʔ ŋuən˨˩]/Định nghĩa
Xem nguồn gốc
Cấp độ CEFR
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.