From time immemorial : স্মরণাতীত কাল হইতে;
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Appropriate Prepositions
Abide by(মেনে চলা): We must abide by the rules of discipline.
Cause of(কারণ): Industry is the cause of your success.
Married to (বিবাহিত): Salma was married to a Govt. Officer.
Plead for (ওকালতি করা): He pleads for justice.
Work for (কারো জন্য কাজ করা): She works for a construction company.
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Idioms
At a round rate (at the fixed price – নির্ধারিত মূল্যে) Things are selling in the shop at a round rate.
At dead of night (গভীর রাতে) The police caught the thief at dead of night.
Soft Soap (নিজ অভিপ্রায়ে/অভিসন্ধিতে তোষামোদ করা): He was expert in soft soap.
Swan-song (অন্তিম গীত, শেষ কর্ম): This writing is the swan song of Kazi Nazrul islam.
Upper hand (প্রাধান্য) - He got the upper hand in the selection.