Nitration : নাইট্রি অ্যাসিড প্রয়োগ;
Related Words
nitrating  nitration  nutrition  See Words Also In
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Appropriate Prepositions
Apologize to (ক্ষমা প্রার্থনা করা, দুঃখসহ ত্রুটি স্বীকার করা): The student apologized to the Principal for adopting unfair means in the examination.
Close to(নিকটে): Our College is close to the Post Office.
Hard of (কানে খাটো বা কম শোনা): Ratan is a hard of hearing.
Repentance for (অনুতাপ): He has repentance for the past.
Solution to (সমাধান): None can solution to every problem.
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Idioms
Bad book (disfavour-খারাপ নজর —n) The secretary has fallen in the bad book of the manager.
Gain Ground (সুবিধা পাওয়া): The wise are said to gain the ground in the long run.
Run into debt (ঋণগ্রস্ত হওয়া)— He ran into debt.
Through thick and thin (through all difficulties, সমস্ত সমস্যার মধ্যে)-Ruma followed her husband through thick and thin.
Widow’s mite (দরিদ্রের ক্ষুদ্র দান): A windows mite is no less important than a large contribution of a rich man.