Vocabulary Booster১টি পরীক্ষায় এসেছেপ্রশ্ন ১৯What is the meaning of the word 'Dissident'?ক(of a container) so tightly closed that no air can leave or enter.খCritic of conventional or official policy.গA state of continuous and regular change.ঘNot able to decide what to do.উত্তর দেখুন