Keratin : শিং, নখ, চুল ইঃ গঠনকারী প্রোটিন;
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Appropriate Prepositions
Astonished at(বিস্ময়-বিহবল হওয়া): We were astonished at his unexpected success.
Crave for(আকাঙ্ক্ষা করা): Everyone craves for care.
Fatigued by (ক্লান্ত): He was fatigued by hard work.
Object to (আপত্তি করা): He objected to my proposal.
Urge upon (আহবান জানানো): She urged upon his son the importance of being honest.
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Idioms
Bird’s eye view - (ভাসা ভাসা দৃশ্য, হালকাভাবে দর্শন): We took a bird’s eye view of the scenery.
Look into something (তদন্ত করা- investigate) - The manager looked into the matter.
Slip of the tongue (বলায় সামান্য ভুল): This is a slip of the tongue; don’t pay much stress on it.
Set out (যাত্রা করা)— I will set out in time.
Up and doing (উদ্যোগী): Be up and doing and then you will succeed in your life.