Usefulness : প্রয়োজনীয়তা; কার্যকারিতা;
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Appropriate Prepositions
Abhorrent to(ঘৃণ্য): Racism of any kind is abhorrent to me.
Based on(প্রতিষ্ঠিত, ভিত্তিক): His information is not based on the correct information.
Conscious of(সচেতন): I am conscious of my deficiencies.
Easy of (সরল): The teacher is easy of approach.
Meet with (হঠাৎ কোন কিছু হওয়া): Yesterday I met with an accident.
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Idioms
Backstairs influence (secret and illegal influence- গোপন এবং বে আইনী প্রভাব-n) He did not deseve the job, however, he got it by backstairs influence.
Gift of the gab (বাকপটুতা): An advocate should have the gift of the gab.
In cold blood (ঠান্ডা মাথায়): They committed this murder in cold blood.
Lump sum (এক কালীন) — He gave us lump sum money.
Ups and downs (উত্থান পতন)- There is ups and downs in a man's life.