Achilles heel ( দুর্বলতা বা ত্রুটি ) He is trying to hide but everybody knows his achilles' heel
By no means ( কোন ভাবেই না ) I shall by no means call on him.
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.
Tooth and nail ( তীব্রভাবে ) He fought tooth and nail against his enemy.
a piece of cake ( খুবই সহজ ) This assignment is a piece of cake
