Big guns : তোপ;
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big guns  bigamous  See Words Also In
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Appropriate Prepositions
Cause for (চিন্তিত হওয়ার কারণ): He has never given me any cause for concern.
Fed up with (বিরক্ত): He is fed up with waiting for her.
Repent of (অনুতাপ করা): I repented of my past.
Sanguine of (নিশ্চিত বা আশান্বিত): Be sanguine of your success.
Sorry for (দুঃখিত): He is sorry for his misdeeds.
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Idioms
Acid test (অগ্নি পরীক্ষা): You must succeed in the acid test of the time you live in.45
Foul play (অসদাচারণ করা): We feared that he had met with foul play.
Hard nut to crack (কঠিন সমস্যা): The problem of adult education is really hard nut to crack.
Pandora’s box (আপাতঃ দৃষ্টিতে ভালো মনে হলেও আসলে ভালো নয়)—His words proved to be Pandora’s box.
Rank and file (সাধারণ লোক): We should pay attention to the rank and file of the country.