Concentrate : কেন্দ্রীভূত করা;
Related Words
concentrate  concentrated  concentrates  concentrating  concentration  concentrations  See Words Also In
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Appropriate Prepositions
Annoyed for(কোনো কারনে বিরক্ত হওয়া): The officer was annoyed with the clerk for being late.
Argue against (বিপক্ষে বলা): She argued against the bill.
Delighted at/with (আনন্দিত হওয়া): Sharmin was delighted at/with her husband’s promotion.
Grasp at (আঁকড়িয়ে ধরা): He grasped me at my hand.
Repent on (নির্ভরশীল): He is repent on his parents.
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Idioms
As a rule (নিয়ম অনুসারে.) As a rule, she kept silent in the meeting.
In full swing (পুরোদমে): The school is in full swing after the vacation.
Irony of fate (ভাগ্যের পরিহাস): He could not succeed by irony of fate.
Pandora’s box (আপাতঃ দৃষ্টিতে ভালো মনে হলেও আসলে ভালো নয়)—His words proved to be Pandora’s box.
Widow’s mite (দরিদ্রের ক্ষুদ্র দান): A windows mite is no less important than a large contribution of a rich man.