Dead of night ( মধ্য রাত্রি ) The robbers broke into the house at dead of night.
Of course ( অবশ্যই ) Of course, you know what that means
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.
Bed of roses ( আরামদায়ক অবস্থা ) Life is not a bed of roses.
To and fro ( এদিন-ওদিক ) Being unable to make up his mind the man is walking to and fro.
A black sheep ( কুলাঙ্গার ) Tom is a black sheep in their family