Spectroscopic : বর্ণালিবীক্ষণ সংক্রান্ত;
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Appropriate Prepositions
Appetite for(ক্ষুধা): He has no appetite for food.
Attain to (লাভ করা): He will not attain to his objective so soon.
Concerned for (উদ্বিগ্ন): The parents are concerned for their growing children.
Perfect for (সঠিক, মানানসই): The new book is perfect for you.
Taste for (রুচি; পছন্দ): He has a great taste for music.
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Idioms
Arm in arm (পরস্পর সম্পর্কিত বিষয়) All good people should live arm in arm with one another.
Breathe one’s last (decease, die- শেষ নিঃশেষ ত্যাগ করা, মরে যাওয়া) The man breathed his last in his native village.
From cradle to grave (দোলনা থেকে কবর পর্যন্ত): Everyone has to learn from cradle to grave.
Lump sum (এক কালীন) — He gave us lump sum money.
To and fro (hither and thither, এদিক ওদিক)-The man is walking to and fro.