Red letter day( স্মরণীয় দিন ) The 21 February is a red letter day in the history of Bangladesh.
At all( আদৌ ) He does not know French at all.
Come off with flying colours( জয়লাভ করা ) Our School team came off with flying colours.
Take one to task( তিরস্কার করা ) He was taken to task for negligence of duty.
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.
