Unfaithful : অবিশ্বস্ত, বিশ্বাসঘাতক;
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Appropriate Prepositions
Apology to (কারো কাছে ক্ষমা চাওয়া): Rakib should ask apology to her.
Apply for(কারো কাছে আবেদন করা): Sumi applied to the Principal for free studentship.
Conceal from(লুকানো) Do not conceal anything from me.
Devote to (উৎসর্গ করা/নিয়োজিত করা): Students should devote sufficient time to their studies.
Quarrel with (ঝগড়া করা): Some girls quarreled with one another.
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Idioms
Arm in arm (পরস্পর সম্পর্কিত বিষয়) All good people should live arm in arm with one another.
At the eleventh hour (at the last moment-শেষ মুহুর্তে adv.) The patient was in a dangerous condition and the doctor came at the eleventh hour.
Bird’s eye view - (ভাসা ভাসা দৃশ্য, হালকাভাবে দর্শন): We took a bird’s eye view of the scenery.
From cradle to grave (দোলনা থেকে কবর পর্যন্ত): Everyone has to learn from cradle to grave.
Red tape (official formalities, অফিসের কাজ)— You would not believe the red tape involved in getting the required permits.