Under the aegis of : সমর্থনে বা রক্ষণাবেক্ষণে বা নিশ্চিত আশ্রয়ে;
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Appropriate Prepositions
Concern with (জড়িত থাকা): Asif is not concerned with this conspiracy.
Dull at (অপ্টু/কাঁচা): He is dull at mathematics.
Hope for (আশা করা): Let us hope for the best.
Indispensable to (অত্যাবশ্যকীয়): Your help is indispensable to him.
Meet with (হঠাৎ কোন কিছু হওয়া): Yesterday I met with an accident.
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Idioms
Fight shy of (এড়িয়ে যাওয়া): Honest boys always fight shy of bad and dishonest friends.
Give in (বশ্যতা স্বীকার করা): We will never give in to our enemies.
Ups and downs (উত্থান পতন): There are ups and downs in a man’s life.
Ups and downs (উত্থান পতন)- There is ups and downs in a man's life.
Weal and woe (joy and sorrow, সুখ দঃখ) —Human life is full of weal and woe.