Extinction angle : কুণ্ঠন কোণ; লোপ-কোণ;
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Appropriate Prepositions
Annoyed with(ব্যক্তির সাথে বিরক্ত হওয়া): I am annoyed with him.
Capable of(সক্ষম): He is capable of doing it.
Deaf to, of, in (না শোনা, বধির হওয়া): The boy is deaf to his father’s advice. This man is deaf of/in one ear.
Good for, at (ভাল): This man is good for nothing. He is good at English.
Render into (অনুবাদ করা): Render the passage into Bengap.
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Idioms
Back and forth (এদিক ওদিক) The mad man was running back and forth in the hospital.
Bad bargain (purchasing at a high price-বেশি দামে কেনা-n) You had a bad bargain of the watch I see.
Crying need (জরুরী): Mass education is a crying need for India.
In one’s teens (তের থেকে উনিশ বছর বয়সের মাঝে): She is yet in her teens.
Short temper (রগচটা)— He is a man of short temper.