Caustic alkali : তীক্ষ্ণক্ষার;
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Appropriate Prepositions
Annoyed with(ব্যক্তির সাথে বিরক্ত হওয়া): I am annoyed with him.
Bad at (অদক্ষ): He is not bad at English.
Call on(কারও সাথে দেখা করা): I called on him in his office.
Cruise to (জয় লাভ করা): The Bangladesh team cruised to their fifth successive win this afternoon.
Stick to (দৃঢ়ভাবে লেগে থাকা): We should always stick to our decisions.
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Idioms
At death’s door (at the point of death- মৃত্যুর দ্বারে) The patient is now at death’s door.
Back and forth (to and fro-এদিক ওদিক – adv.) The mad man was walking back and forth in the doctor’s chamber.
Milk and honey – (প্রাচুর্য)- He lives with milk and honey.
Pack of lies (ডাঁহা মিথ্যা)—He told pack of lies to prove himself innocent.
Put the cart before the horse (to reverse the natural order of things-কোনো জিনিসের স্বাভাবিক ক্রমকে পাল্টে দেয়া) - The leader put the cart before the horse.