By leaps and bounds( অতি দ্রুতগতিতে ) The population of Bangladesh is increasing by leaps and bounds.
Burning question ( তীব্র বিতর্কের বিষয় ) The problem of the dowry system is the burning question of the day.
A blessing in disguise( বিপরীতে হিত ; প্রথমে খারাপ হিসেবে মনে হলেও পরবর্তীতে ভালো হয় ) Sam's motorcycle accident was a blessing in disguise because he got enough insurance money.
Build castles in the air( আকাশ কুসুম চিন্তা করা ) Don't idle away your time in building castles in the air.
In black and white( লিখিতভাবে ) Put down the statement in black and white.
Bring to book( শাস্তি দেওয়া ) He should be brought to book for his misconduct.
