At a loss( হতবু্দ্ধি ; কিংকর্তব্যবিমূঢ় ) He was at a loss and did not know what to do.
Come off with flying colours( জয়লাভ করা ) Our School team came off with flying colours.
At once finger ends( নখদর্পণে ) All these facts are at his finger ends.
Heart and soul( সর্বান্তঃকরণে ) Try heart and soul and you will succeed.
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.
On the spur of the moment( মুহুর্তের উত্তেজনায় ) He did it on the spur of the moment.
