ঘূর্ণপাম্প: [Noun] Rotary pump.
Related Words
ঘূর্ণপাম্প  ঘূর্ণপৃষ্ঠ  ঘূর্ণাক্ষ  ঘূর্ণাবর্ত  See Words Also In
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Appropriate Prepositions
Apology for (কোনো কারনে ক্ষমা চাওয়া): Sajib should ask apology to her of his mistake.
Appetite for(ক্ষুধা): He has no appetite for food.
Business with (ব্যবসা, কাজ): He is pleased to do business with you.
Contrary to(বিপরীত, পরিপন্থী): Students should not act contrary to the rules of discipline.
Long for (আশা করা/কামনা করা): He longed for name and fame.
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Idioms
Back and forth (এদিক ওদিক) The mad man was running back and forth in the hospital.
Do yeoman’s service (বিশেষ উপকার করা): Freedom fighters have done yeoman’s service for country.
Lion’s share (বড় মাপের অংশ): He took the lion’s share of the profit.
Put the cart before the horse (to reverse the natural order of things-কোনো জিনিসের স্বাভাবিক ক্রমকে পাল্টে দেয়া) - The leader put the cart before the horse.
To go to the dogs (গোল্লায় যাওয়া)- He has gone to the dogs by keeping evil company.