Ventilation : বায়ুচলাচল; বায়ুচলন; বায়ুরন্ধ্র;
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ventilating  ventilation  See Words Also In
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Appropriate Prepositions
Add to (বৃদ্ধি করা, যোগ করা): The doll-dance in the exhibition added to our pleasure.
Change into (পরিবর্তিত হওয়া): At what point does boiling water change into vapor.
Devoid of (বিহীন/বর্জিত): He is devoid of common sense.
Rule over (শাসন করা): In the absence of the Parliament, the President rules over the country.
Side with (পক্ষ অবলম্বন করা): The Chairman sided with the powerful party.
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Idioms
Fight shy of (এড়িয়ে যাওয়া): Honest boys always fight shy of bad and dishonest friends.
In lieu of (পরিবর্তে): Give me this pen in lieu of that.
Round the clock (সমস্ত দিন): He is working round the clock.
Run short (কমতি পড়া) —I ran short of money.
With the sweat of one’s brow (মাথার ঘাম পায়ে ফেলে) — He earns his livelihood with the sweat of his brow.