Part and parcel ( অবিচ্ছেদ্য অংশ ) Discipline is part and parcel of administration.
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.
In vain ( বৃথা ) All his attempts were in vain.
Out of the wood ( বিপদমুক্ত ) He is not yet out of the wood.
Dead of night ( মধ্য রাত্রি ) The robbers broke into the house at dead of night.
Read between the lines ( তাৎপর্য বোঝা ) Try to read between the lines of the letter.