Laboriously : কঠোর পরিশ্রমসহকারে;
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Appropriate Prepositions
Apart from(ছাড়া, ব্যতীত, দূরে): They pave apart from each other.
Dwell upon (আলোচনা করা): They dwell long upon the matter.
Look over (পরীক্ষা করা): He was looking over the answer scripts.
Perfect for (সঠিক, মানানসই): The new book is perfect for you.
Search for (সন্ধান করা): The police searched the halls of residence for arms.
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Idioms
Call in question (সন্দেহ করা): No one can call his honesty in question.
Cut to the quick (মর্মাহত হওয়া): I was cut to the quick by his birds.
Give one’s right arm (বিপদের ঝুকি নেয়া): I will give my right arm if I could manage the tickets.
Lump sum (এক কালীন) — He gave us lump sum money.
Round the clock (সমস্ত দিন): He is working round the clock.