Vacuum flask : তরল পদার্থ ঠাণ্ডা বা গরম রাখার জন্য নির্বাত বোতল; বোতল;
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Appropriate Prepositions
Abide with(সঙ্গে থাকা): If you would like to rest for a while, you can abide with me.
Afraid of(ভীত): An honest man is not afraid of telling the truth.
Annoyed for(কোনো কারনে বিরক্ত হওয়া): The officer was annoyed with the clerk for being late.
Apology to (কারো কাছে ক্ষমা চাওয়া): Rakib should ask apology to her.
Authority on(বিশেষজ্ঞ পন্ডিত): Kamal was an authority on English literature.
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Idioms
At a standstill (নিশ্চল, অচলাবস্থায়-adj.) The discussion is now at a standstill.
Bad book (disfavour-খারাপ নজর —n) The secretary has fallen in the bad book of the manager.
Fair play (প্রতারণা বিহীন নীতি বা কাজ): I believe in the practice of fair play in my business.
Nip in the bud (অঙ্কুরে বিনষ্ট হওয়া): All his hopes were nipped in the bud.
Safe and sound (নিরাপদে)— He reached home safe and sound.