Refractor : প্রতিসারক মাধ্যম; প্রতিসারক দূরবীক্ষণ;
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Appropriate Prepositions
Abstain from(বিরত থাকা): I am trying to abstain from sweets for my new diet.
Attacked by(আক্রান্ত ব্যক্তিবাচক): He has been attacked by a gang of robbers.
Bridge over (সেতু): The only entrance to Allahabad in that direction was by a bridge over the Jumna.
Cope with(সামলানো বা পেরে উঠা): They cannot cope with the situation.
Remedy for (প্রতিকার): There is no remedy for his misbehavior.
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Idioms
Bird’s eye view - (ভাসা ভাসা দৃশ্য, হালকাভাবে দর্শন): We took a bird’s eye view of the scenery.
Fish out of water (অস্বস্তিকর অবস্থা): When he came to the village, he felt like fish out of water.
Fair play (প্রতারণা বিহীন নীতি বা কাজ): I believe in the practice of fair play in my business.
Moot point (অমীমাংসিত বিষয়): Dowry system is still a moot point in Bangladesh.
Under age (অপ্রাপ্ত বয়স্ক)- He could not cast his vote because he was under age.