Air shaft : খনি মধ্যে বাতাস ঢোকানর জন্য পথ;
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Appropriate Prepositions
Antipathy to/towards (ঘৃনা): I have a strong antipathy to smoking.
Assent to(সম্মতি দেওয়া): The President has assented to the bill.
Long for (আশা করা/কামনা করা): He longed for name and fame.
Rejoice at/in (আনন্দ করা): Everybody rejoiced at/in his success.
With a view to (উদ্দেশ্য): I went to hospital with a view to seeing you.
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Idioms
ABC - (প্রাথমিক জ্ঞান): I don't know the ABC of politics.
At a snail's pace (very slowly – খুব ধীর গতিতে) The economy of Bangladesh is growing at a snail’s pace.
At home (proficient in — দক্ষ) The students of Bangladesh should be at home in Bangla.
Set free (মুক্ত করা): The prisoners were set free.
Square meal (পেট ভরা আহার): He is too poor to have a square meal everyday.