At large( স্বাধীন ) The anti-socials are still at large.
slap on the wrist( মৃদু শাস্তি ) Although he broke the rules, he was only given a slap on the wrist
All at once( হঠাৎ ) All at once a tiger came out of the forest.
By the by( প্রসঙ্গক্রমে ) By the by I came to know that he was ill.
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.
