Vacuum flask : তরল পদার্থ ঠাণ্ডা বা গরম রাখার জন্য নির্বাত বোতল; বোতল;
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Appropriate Prepositions
Angry for (কোন কাজে রাগান্বিত হওয়া): Rahim was angry with me for my having done this.
Annoyed for(কোনো কারনে বিরক্ত হওয়া): The officer was annoyed with the clerk for being late.
Arrange for(ব্যবস্থা করা): We have arranged everything for our study tour.
Conceal from(লুকানো) Do not conceal anything from me.
Object to (আপত্তি করা): He objected to my proposal.
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Idioms
On the wane (হ্রাসমান): His fame is on the wane now.
Short temper (রগচটা)— He is a man of short temper.
To go to the dogs (গোল্লায় যাওয়া)- He has gone to the dogs by keeping evil company.
Well off (স্বচ্ছল) - Jim and Della were not well off.
Wild goose chase (useless pursuit, পন্ডশ্রম) —Do not waste time in wild goose chase.