Heart and soul ( সর্বান্তঃকরণে ) Try heart and soul and you will succeed.
In vain ( বৃথা ) All his attempts were in vain.
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.
loose cannon ( অপ্রত্যাশিত ) He is a bit of a loose cannon.
At a loss ( হতবু্দ্ধি ; কিংকর্তব্যবিমূঢ় ) He was at a loss and did not know what to do.
At once finger ends ( নখদর্পণে ) All these facts are at his finger ends.
