On the spot : অকুস্থলেই; সঙ্গে সঙ্গে; হাতে-হাতে; ততক্ষণাত; সতর্কভাবে; প্রস্তুতভাবে; সঙ্কটাপন্ন;
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Appropriate Prepositions
Attacked with(আক্রান্ত): He is attacked with …
Cause of(কারণ): Industry is the cause of your success.
Comply with(মেনে নেওয়া): The clerks must comply with the orders of their officer.
Convinced of (আশ্বস্ত): You are convinced of his product.
Hard of (কানে খাটো বা কম শোনা): Ratan is a hard of hearing.
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Idioms
Dead against (তীব্র বিরোধী - strongly opposed to): I am dead against corruption.
Moot point (অমীমাংসিত বিষয়): Dowry system is still a moot point in Bangladesh.
Three R's (প্রাথমিক শিক্ষা)— He has not yet learnt the three R's.
Turn a deaf ear to (pay no attention, প্রত্যাখান করা) —He turned a deaf ear to my proposal.
Well up (সুপন্ডিত)- Dr. Shahidullah was well-up in Bengali language.