Vacuum flask : তরল পদার্থ ঠাণ্ডা বা গরম রাখার জন্য নির্বাত বোতল; বোতল;
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Appropriate Prepositions
Apology to (কারো কাছে ক্ষমা চাওয়া): Rakib should ask apology to her.
Attacked by(আক্রান্ত ব্যক্তিবাচক): He has been attacked by a gang of robbers.
Certain of(নিশ্চিত): Jamal is certain of his success.
Remedy for (প্রতিকার): There is no remedy for cancer.
Take pity on (দয়া করা): Take pity on the helpless people.
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Idioms
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
On the whole (মোটের ওপর): On the whole, his conduct is good.
Pack of lies (ডাঁহা মিথ্যা)—He told pack of lies to prove himself innocent.
Speed money (ঘুষ; উৎকোচ): He hankers after speed money.
Take one to task (rebuke, তিরস্কার করা)— He took me to task for negligence of duty.