Bring to book ( শাস্তি দেওয়া ) He should be brought to book for his misconduct.
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.
By the by ( প্রসঙ্গক্রমে ) By the by I came to know that he was ill.
At arm’s length ( দূরে ) Try to keep the bad boy at arm’s length.
At once finger ends ( নখদর্পণে ) All these facts are at his finger ends.
