Effeciency : সামর্থ্য; কর্মক্ষমতা;
Related Words
effacing  effeciency  effi ciency  efficiencies  efficiency  efficiency bar  See Words Also In
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Appropriate Prepositions
Creep up (বৃদ্ধি পাওয়া): The prices of are creeping up day by day.
Cruise to (জয় লাভ করা): The Bangladesh team cruised to their fifth successive win this afternoon.
Feed on (খেয়ে বাঁচা): The cow feeds on grass.
Hit upon (পরিকল্পনা নেয়া): Rahim hit upon a new plan.
Regret for (দুঃখ করা): We regretted for his failure.
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Idioms
Pros and cons (খুঁটিনাটি): You should consider the pros and cons of the system.
Pack of lies (ডাঁহা মিথ্যা)—He told pack of lies to prove himself innocent.
See to (বিবেচনা করা)— Can you see to it that everyone gets a copy of this memo?
Without fail (অবশ্যই) - You must attend the meeting without fail.
With the sweat of one’s brow (মাথার ঘাম পায়ে ফেলে) — He earns his livelihood with the sweat of his brow.