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.
As it were ( যেন ) The sun is, as it were , the lamp of the universe.
All on a sudden ( হঠাৎ ) All on a sudden a tiger came out of the bush.
At one’s wit’s end ( হতবুদ্ধি ) He was at his wit’s end and did not know what to do.