Caustic alkali : তীক্ষ্ণক্ষার;
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Appropriate Prepositions
Agree with(ব্যক্তির সাথে একমত হওয়া): I agree with you.
Answer for(কোনো কারনে জবাবদিহি করা): He will have to answer for his misdeeds.
Caution against(সাবধান): Take all cautions against the danger.
Charge with(অভিযুক্ত করা): He is charged with killing.
Object to (প্রতিবাদ করা): Many people objected to the remarks of the leader.
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Idioms
Eat humble pie (অপমান হজম করে ক্ষমা চাওয়া): The manager had to eat humble pie before his employees.
Gift of the gab (বাকপটুতা): An advocate should have the gift of the gab.
Man of straw (অপদার্থ): We do not care for a man of straw like you.
Pandora’s box (আপাতঃ দৃষ্টিতে ভালো মনে হলেও আসলে ভালো নয়)—His words proved to be Pandora’s box.
Round the clock (সমস্ত দিন): He is working round the clock.