Lion's share( সিংহভাগ ) He took the lion's share of the profit.
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.
Burning question ( তীব্র বিতর্কের বিষয় ) The problem of the dowry system is the burning question of the day.
All at once( হঠাৎ ) All at once a tiger came out of the forest.
All on a sudden( হঠাৎ ) All on a sudden a tiger came out of the bush.
Hard and fast( বাঁধা ধরা ) There is no such hard and fast rule in this matter.