Bio chemical : প্রাণরসায়নিক;
Related Words
bio chemical  biochemical  See Words Also In
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Appropriate Prepositions
Ask for (কোনো কিছু চাওয়া): Do not ask him for any help because he doesn’t like to help anyone.
Bridge over (সেতু): The only entrance to Allahabad in that direction was by a bridge over the Jumna.
Concerned with(জড়িত): She was concerned with such things.
Stare at (চাওয়া বা তাকানো): He stares at me.
Subsist on (বেঁচে থাকা): The poor subsist mainly on rice and pulses.
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Idioms
Beggar description - (অবর্ণনীয় হওয়া): The distress of the Muslims in Bosnia beggars description.
Carry the day (জয়লাভ করা) The boys carried the day in the debate competition.
Liable to mislead (প্রতারণাপূর্ণ- deceptive): Appearances can often be liable to mislead.
Swan-song (অন্তিম গীত, শেষ কর্ম): This writing is the swan song of Kazi Nazrul islam.
Three R's (প্রাথমিক শিক্ষা)— He has not yet learnt the three R's.