Vocabulary is the most ()element of a language as it is undergoing constant changes both in form and content.
A.unbalanced B.unstable C.unhinged D.undoubted正确答案B
Vocabulary is the most ()element of a language as it is undergoing constant changes both in form and content.
A.unbalanced B.unstable C.unhinged D.undoubted正确答案B