Brain-drain : মগজ-চালান; বিদেশে মগজ-চালান;
Related Words
brain drain  brain-drain  braindrain  See Words Also In
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Appropriate Prepositions
Contribution to (অবদান): His invention made a major contribution to road safety.
Due to (কারণে): His absence is due to illness.
Play at (খেলা): I do not play at cards.
Quarrel with (ঝগড়া করা): Some girls quarreled with one another.
Take pity on (দয়া করা): Take pity on the helpless people.
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Idioms
At a round rate (at the fixed price – নির্ধারিত মূল্যে) Things are selling in the shop at a round rate.
At every step (প্রতি পদে পদে): There are dangers at every step in our life and yet we want to live.
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Lame excuse (বাজে ওজর): The lame excuse will not do.
Stone’s throw (অতি নিকটে): Our school is at a stone’s throw from our house.