At a loss ( হতবু্দ্ধি ; কিংকর্তব্যবিমূঢ় ) He was at a loss and did not know what to do.
Carry the day ( জয়লাভ করা ) Rajib, the best player of the school, carried the day in the annual sports.
In one's teens ( তের থেকে উনিশ বছর বয়সের মধ্যে ) She is yet in her teens.
In the nick of time ( ঠিক সময়ে ) The school team arrived in the nick of time.
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.
Red letter day ( স্মরণীয় দিন ) The 21 February is a red letter day in the history of Bangladesh.