Blood and iron : নির্মম বলপ্রয়োগ;
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Appropriate Prepositions
Answer for(কোনো কারনে জবাবদিহি করা): He will have to answer for his misdeeds.
Consist of(গঠিত হওয়া): The committee consists of ten members.
Deprived of (বঞ্চিত): He was deprived of education due to extreme poverty.
Feed with (কোনো কিছু খাওয়া): They feed the cow with grass.
Perfect for (সঠিক, মানানসই): The new book is perfect for you.
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Idioms
At home (comfortable— আরাম) He feels at home in Dhaka now.
At random (indiscriminately—এলোপাথাড়ি-adv.) He talks at random like a mad man.
Hard nut to crack (কঠিন সমস্যা): The problem of adult education is really hard nut to crack.
White elephant (অত্যন্ত ব্যয়সাপেক্ষ বিলাসিতা): At last the department proved to be a white elephant.
Weal and woe (সুখ-দুঃখ): Human life is full of weal and woe.