Trial and error method : শুদ্ধাশুদ্ধি প্রণালী;
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Appropriate Prepositions
Addicted to(খারাপ কিছুতে আসক্ত): She is addicted to collecting stamps.
Agree with, on, to(একমত হওয়া): My father agreed with me on this point, but he did not agree to my proposal to set up a canteen.
Appointment with (সাক্ষাতের সময়): He has an appointment with the minister at 10:00 am.
Argue against (বিপক্ষে বলা): She argued against the bill.
Cause for (চিন্তিত হওয়ার কারণ): He has never given me any cause for concern.
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Idioms
Be all and end all (the ultimate out come- চরম পরিণতি—n) A loss of one million taka was the be all and end all of the projects.
Bear hard upon (behave rudely-নির্দয়ভাবে ব্যবহার করা - V) Never bear hard upon your servants.
Irony of fate (ভাগ্যের পরিহাস): He could not succeed by irony of fate.
Take to one's heels (to run away, পালানো)- They took to their heels when they saw the policeman approaching.
Well off (স্বচ্ছল) - Jim and Della were not well off.