By leaps and bounds( অতি দ্রুতগতিতে ) The population of Bangladesh is increasing by leaps and bounds.
In force( বলবৎ ) This law is in force now.
till the cows come home( অনেক সময় ধরে ) I could play outside till the cows come home
Hard nut to crack( কঠিন সমস্যা ) The problem of adult education is really a hard nut to crack.
Set free( মুক্ত করা ) The prisoners were set free.
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.