First hand knowledge : মৌল জ্ঞন;
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Appropriate Prepositions
Abide with(সঙ্গে থাকা): If you would like to rest for a while, you can abide with me.
Arrive at(উপস্থিত হওয়া, পৌছানো): The train arrived at Dhaka station on time.
Based on(প্রতিষ্ঠিত, ভিত্তিক): His information is not based on the correct information.
Concerned for (উদ্বিগ্ন): The parents are concerned for their growing children.
Convince of(বিশ্বাস হওয়া): I am convinced of your efficiency.
Browse All Appropriate Prepositions
Idioms
At random (indiscriminately—এলোপাথাড়ি-adv.) He talks at random like a mad man.
Man of letters (পন্ডিত ব্যক্তি): You are truly a man of letters.
Moot point (অমীমাংসিত বিষয়): Dowry system is still a moot point in Bangladesh.
Take one to task (rebuke, তিরস্কার করা)— He took me to task for negligence of duty.
Wild goose chase (useless pursuit, পন্ডশ্রম) —Do not waste time in wild goose chase.