Spectroscopic : বর্ণালিবীক্ষণ সংক্রান্ত;
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Appropriate Prepositions
Ask about (কাউকে খোঁজ করা): Rahim asked about Karim.
Certain of(নিশ্চিত): Jamal is certain of his success.
Consist of(গঠিত হওয়া): The committee consists of ten members.
Deal in (কোনো কিছুর ব্যবসা করা): They deal in green vegetables.
Dull at (অপ্টু/কাঁচা): He is dull at mathematics.
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Idioms
At liberty (free-মুক্ত-adj.) They are at liberty to go anywhere.
Bird’s eye view - (ভাসা ভাসা দৃশ্য, হালকাভাবে দর্শন): We took a bird’s eye view of the scenery.
Bad book (disfavour-খারাপ নজর —n) The secretary has fallen in the bad book of the manager.
Nip in the bud (অঙ্কুরে বিনষ্ট হওয়া): All his hopes were nipped in the bud.
Swan-song (অন্তিম গীত, শেষ কর্ম): This writing is the swan song of Kazi Nazrul islam.