Quadraphonic : ধ্বনি পুনরুত্পাদন সম্পর্কে চারটি ধ্বনিপথ ব্যবহার করে এমন;
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Appropriate Prepositions
Affection for(স্নেহ): She has a great affection for the child.
Ask for (কোনো কিছু চাওয়া): Do not ask him for any help because he doesn’t like to help anyone.
Avail (oneself) of(সুযোগের স্বব্যবহার করা): I shall avail myself of the first trip to London tomorrow.
Dull at (অপ্টু/কাঁচা): He is dull at mathematics.
Hinge on/upon (নির্ভর করা): The whole matter hinges upon this clue.
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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.
Call in question (সন্দেহ করা): No one can call his honesty in question.
Cut a sorry figure (খারাপ ফল করা): He cuts a sorry figure in the examination.
On the wane (হ্রাসমান): His fame is on the wane now.
Weal and woe (সুখ-দুঃখ): Human life is full of weal and woe.