Concentrate : কেন্দ্রীভূত করা;
Related Words
concentrate  concentrated  concentrates  concentrating  concentration  concentrations  See Words Also In
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Appropriate Prepositions
Argue over (কোন বিষয়ে তর্ক করা): The kids are arguing over which TV program to watch.
Catch at(ধরা): A drowning man catches at a straw.
Die of, for, from (মারা যাওয়া): He died of cholera. He died for his country. He died from an injury.
Good for, at (ভাল): This man is good for nothing. He is good at English.
Quarrel with (ঝগড়া করা): Some girls quarreled with one another.
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Idioms
Bear in mind (remember— মনে রাখা —V): You should also bear in mind the additional costs of the mortgage.
Easy and free (অমায়িক): The boy is easy and free, so he has many friends.
In the wake of (ঠিক পরে): Police came in the wake of the accident.
Set something right (ঠিক করা)— He will set the machine right.
Up and doing (উদ্যোগী): Be up and doing and then you will succeed in your life.