At one’s wit’s end ( হতবুদ্ধি ) He was at his wit’s end and did not know what to do.
Sink in ( আবদ্ধ হওয়া, ডুবে যাওয়া ) He sank in mud or the ship sank into the sea.
Pros and cons ( খুঁটিনাটি ) You should consider the Pros and cons of the system.
At once finger ends ( নখদর্পণে ) All these facts are at his finger ends.
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.
Stick to ( দৃঢ়ভাবে লেগে থাকা ) He sticks to his decision.