Fidelity guarantee : সততার জামিন;
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Appropriate Prepositions
Adequate to(সমানুপাতিক): The salary, he gets, is not adequate to the volume of work he has to do.
Agree to(ব্যক্তি ছাড়া অন্যকিছুর সাথে একমত হওয়া): We cannot agree to your proposal.
Descend on (আক্রমণ করা): Armed thieves descended on the helpless girl.
Sick of (ক্লান্ত): He is sick of this idle life.
Take pity on (দয়া করা): Take pity on the helpless people.
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Idioms
A bed of roses - (সুখকর অবস্থা): Life is not a bed of roses.
Bad book (disfavour-খারাপ নজর —n) The secretary has fallen in the bad book of the manager.
End in smoke (ব্যর্থ হওয়া): All his plans ended in smoke.
Learn by heart (মুখস্থ করা)— He learnt the poem by heart.
Pick one’s pocket (পকেট মারা)— He tried to pick my pocket.