On the spur of the moment( মুহুর্তের উত্তেজনায় ) He did it on the spur of the moment.
Maiden speech( প্রথম বক্তৃতা ) His maiden speech fell flat on the audience.
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.
Turn over a new leaf( নূতনের সূচনা ) After his failure he turned over a new leaf.
By and by( শীঘ্র ) He will come here by and by.
On the wane( হ্রাসমান ) His fame is on the wane now.
