Book worm ( বইয়ের পোকা; গ্রন্থকীট ) Don't be a book worm.
In time ( ঠিক সময়ে ) He reached the station in time.
Catch red handed ( হাতে নাতে ধরা ) The thief was caught red handed.
In fine ( পরিশেষ ) In fine he declared his plan.
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 the mean time ( ইতিমধ্যে ) Lila will come here to-night. In the mean time you should get her room ready.