Prolongation : দীর্ঘায়তকরণ;
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Appropriate Prepositions
Acceptable to(গ্রহণযোগ্য): Such behavior is just not acceptable in this school.
Catch at(ধরা): A drowning man catches at a straw.
Depend on (নির্ভর করা): Presently, the students depend on/upon guide books.
Die of, for, from (মারা যাওয়া): He died of cholera. He died for his country. He died from an injury.
Succeed in (সাফল্য লাভ করা): He succeeded in life.
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Idioms
At death’s door (at the point of death- মৃত্যুর দ্বারে) The patient is now at death’s door.
At random (indiscriminately—এলোপাথাড়ি-adv.) He talks at random like a mad man.
In vogue (চালু): This custom is not in vogue at present.
Pack of lies (ডাঁহা মিথ্যা)—He told pack of lies to prove himself innocent.
Pack up a quarrel (ঝগড়া মিটানো)— He packed up their quarrel.