On the job : কর্মরত; সক্রিয়;
Related Words
on the job  on the spot  See Words Also In
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Appropriate Prepositions
Apologize to (ক্ষমা প্রার্থনা করা, দুঃখসহ ত্রুটি স্বীকার করা): The student apologized to the Principal for adopting unfair means in the examination.
Aptitude for(স্বাভাবিক দক্ষতা, যোগ্যতা): He has no aptitude for public service.
Busy with(ব্যস্ত থাকা): Rahim is now busy with her homework.
By heart (মুখস্থ): Kamal learnt to poem by heart.
Delegate to (প্রতিনিধি): Nazrul welcomed the delegates to the new conference.
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Idioms
Hold water (ধোপে টেকা): This policy will not hold water in this situation.
On the whole (মোটের ওপর): On the whole, his conduct is good.
Read between the lines (understand the significance, অন্তনিহিত অর্থ বুঝা) Try to read between the lines of the letter.
Tooth and nail (strongly, প্রবলভাবে)-He fought tooth and nail against his enemy.
Well-to-do (সঙ্গতিপূর্ণ) - He was not born in a well-to-do family.