Meaning of lưu toan | Babel Free
/liw˧˧ twaːn˧˧/Định nghĩa
A-xít sun-phu-ríc.
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.