Sacred cow : এমন কিছু যাকে অযৌক্তিকভাবে প্রশ্ন বা বিতর্কের উর্ধ্বে বলে গণ্য করা হয়;
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Appropriate Prepositions
Angry for (কোন কাজে রাগান্বিত হওয়া): Rahim was angry with me for my having done this.
Assent to(সম্মতি দেওয়া): The President has assented to the bill.
Call for(চাওয়া): I will call for his explanation.
Concern with (জড়িত থাকা): Asif is not concerned with this conspiracy.
Due to (কারণে): His absence is due to illness.
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Idioms
Fair play (প্রতারণা বিহীন নীতি বা কাজ): I believe in the practice of fair play in my business.
In cold blood (ঠান্ডা মাথায়): They committed this murder in cold blood.
Null and void (বাতিল): The deed has been null and void now.
On the wane (হ্রাসমান): His fame is on the wane now.
Show good manner (ভালো আচরণ প্রদর্শন ): You should show good manner in the company of young ladies.