A bolt from the blue ( সম্পূর্ন অপ্রত্যাশিত ) The news of his father's death came to him as a bolt from the blue.
Now and then ( মাঝে মাঝে ) He comes here now and then.
In a fix ( মুশকিলে পতিত ) He is in a fix and does not know what to do.
At one’s wit’s end ( হতবুদ্ধি ) He was at his wit’s end and did not know what to do.
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.
