Effeciency : সামর্থ্য; কর্মক্ষমতা;
Related Words
effacing  effeciency  effi ciency  efficiencies  efficiency  efficiency bar  See Words Also In
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Appropriate Prepositions
Argue with, about(কথা কাটাকাটি করা): They always argue with me about tiny matter.
Astonished at(বিস্ময়-বিহবল হওয়া): We were astonished at his unexpected success.
At lunch (দুপুরের খাবারে): They were talking so much at lunch that their food went cold.
Attacked by(আক্রান্ত ব্যক্তিবাচক): He has been attacked by a gang of robbers.
Call for(চাওয়া): I will call for his explanation.
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Idioms
At a standstill (নিশ্চল, অচলাবস্থায়-adj.) The discussion is now at a standstill.
Burning question - (গুরুত্বপূর্ন বিষয়): Poverty problem is a burning question of our country.
Gala day (বিশেষ দিন): The Eid–Ul-Fitr is a gala day for Muslims.
In cold blood (ঠান্ডা মাথায়): They committed this murder in cold blood.
Take to one's heels (to run away, পালানো)- They took to their heels when they saw the policeman approaching.