To the backbone ( হাড়ে হাড়ে ) The boy is wicked to the backbone.
be up and doing ( উঠে-পড়ে লাগা )
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.
At arm’s length ( দূরে ) Try to keep the bad boy at arm’s length.
Read between the lines ( তাৎপর্য বোঝা ) Try to read between the lines of the letter.
Above board ( সংশয়হীন ভাবে নির্দোষ ) His activities are open and above board.