Sweat blood : খেটে কাজ করা; প্রচণ্ড মেহনত করা; মুখে রক্ত তুলে কাজ করা; অত্যন্ত উৎকণ্ঠিত হওয়া;
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Appropriate Prepositions
Curse for (অভিশাপ দেয়া): If he ever mistreats my parents, I will certainly curse him for it.
Decide upon (সিদ্ধান্ত করা): We have not yet decided whether we are going to picnic.
Grateful to (কৃতজ্ঞ): We should be grateful to our teachers.
Indispensable to (অত্যাবশ্যকীয়): Your help is indispensable to him.
Run over (চাপা পড়া): The man was run over by a truck.
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Idioms
At death’s door (at the point of death- মৃত্যুর দ্বারে) The patient is now at death’s door.
At-fault (guilty-কিংকর্তব্যবিমূঢ়, অপরাধ, দোষ adj.) You are at fault.
At the eleventh hour (at the last moment-শেষ মুহুর্তে adv.) The patient was in a dangerous condition and the doctor came at the eleventh hour.
Head and ears (সম্পূর্ণরূপে): He is over head and ears in debt.
Ups and downs (উত্থান পতন): There are ups and downs in a man’s life.