Harmonic series : বিপরীত শ্রেণী; বিপরীত শ্রেণি;
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Appropriate Prepositions
Agree with(ব্যক্তির সাথে একমত হওয়া): I agree with you.
Charge with(অভিযুক্ত করা): He is charged with killing.
Devoid of (বিহীন/বর্জিত): He is devoid of common sense.
Refer to (সিদ্ধান্তের জন্য প্রেরণ করা): The matter was referred to the Chairman for a decision.
Take after (সদৃশ হওয়া, একই রকম হওয়া): The boy takes after his brother.
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Idioms
Bad book (disfavour-খারাপ নজর —n) The secretary has fallen in the bad book of the manager.
Kith and kin (নিকট আত্মীয়): He has no relation with his kith and kin.
Run short (কমতি পড়া) —I ran short of money.
Run a risk (ঝুকি নেয়া) — He ran a risk to save his life.
Well off (স্বচ্ছল) - Jim and Della were not well off.