Authenticates : বিশুদ্ধতা প্রমাণ করা;
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Appropriate Prepositions
Apart from(ছাড়া, ব্যতীত, দূরে): They pave apart from each other.
Attest to(প্রত্যয়ন করা): I like to attest to your ability.
Deaf to, of, in (না শোনা, বধির হওয়া): The boy is deaf to his father’s advice. This man is deaf of/in one ear.
Devote to (উৎসর্গ করা/নিয়োজিত করা): Students should devote sufficient time to their studies.
Fit for (যোগ্য): Sabina is not yet fit for marriage.
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Idioms
Brown study (দিবাস্বপ্ন): The girl is absorbed in a brown study.
Backstairs influence (secret and illegal influence- গোপন এবং বে আইনী প্রভাব-n) He did not deseve the job, however, he got it by backstairs influence.
In the long run (পরিণামে): You will have to suffer in the long run.
Swan-song (অন্তিম গীত, শেষ কর্ম): This writing is the swan song of Kazi Nazrul islam.
Upper hand (প্রাধান্য) - He got the upper hand in the selection.