Permafrost : ভূগর্ভস্থ চিরহিমায়িত অঞ্চল;
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Appropriate Prepositions
Addicted to(খারাপ কিছুতে আসক্ত): She is addicted to collecting stamps.
Caution against(সাবধান): Take all cautions against the danger.
Grasp at (আঁকড়িয়ে ধরা): He grasped me at my hand.
Rejoice at/in (আনন্দ করা): Everybody rejoiced at/in his success.
Repent on (নির্ভরশীল): He is repent on his parents.
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Idioms
Art and part (অভিসন্ধি ও সম্পাদন) We have no art and part in his affairs.
Bad book (disfavour-খারাপ নজর —n) The secretary has fallen in the bad book of the manager.
Fair and square (সৎ): The learned persons should be fair and square.
Gift of the gab (বাকপটুতা): An advocate should have the gift of the gab.
Pave the way (সুপ্রসন্ন করা) – I am sure I can pave the way for your success.