Primary memory : প্রাথমিক স্মৃতি;
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Appropriate Prepositions
Addicted to(খারাপ কিছুতে আসক্ত): She is addicted to collecting stamps.
Count for(গণ্য বা বিবেচিত হওয়া): There can be no lasting peace without true democracy in which the people play a part and count for something.
Feed on (খেয়ে বাঁচা): The cow feeds on grass.
Fit for (যোগ্য): Sabina is not yet fit for marriage.
Inferior to (নীচু/হীন): He is inferior to his neighbor.
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Idioms
At ease (in peace or pleasure – শান্তিতে বা আরামে) A man who has enemies can not live at ease.
Fight shy of (এড়িয়ে যাওয়া): Honest boys always fight shy of bad and dishonest friends.
In lieu of (পরিবর্তে): Give me this pen in lieu of that.
Lose heart (হতাশ হওয়া) — Do not lose heart in danger.
Scapegoat (উদোর পিন্ডি বুধোর ঘাড়ে)—He was made scapegoat of the incident.