Unauthentic : অপ্রমাণিক, বাজে;
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Appropriate Prepositions
Angry for (কোন কাজে রাগান্বিত হওয়া): Rahim was angry with me for my having done this.
Apologize to (ক্ষমা প্রার্থনা করা, দুঃখসহ ত্রুটি স্বীকার করা): The student apologized to the Principal for adopting unfair means in the examination.
Desist from (বিরত থাকা): She desisted from making this.
Famous for (বিখ্যাত): Smith is famous for his wisdom.
Work for (কারো জন্য কাজ করা): She works for a construction company.
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Idioms
As a rule (নিয়ম অনুসারে.) As a rule, she kept silent in the meeting.
Crying need (জরুরী): Mass education is a crying need for India.
In a nutshell (সংক্ষেপে): Tell the whole story in a nutshell.
In black and white – (লিখিতভাবে) – Put forward your proposal in black and white.
Take to one's heels (to run away, পালানো)- They took to their heels when they saw the policeman approaching.