Meaning of hệ thức | Babel Free
/hḛʔ˨˩ tʰɨk˧˥/Định nghĩa
Như định lí
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.