Unchangeability : অপরিবর্তনীয়তা;
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Appropriate Prepositions
Ask for (কোনো কিছু চাওয়া): Do not ask him for any help because he doesn’t like to help anyone.
Complain to (কারো কাছে নালিশ করা): You should not complain to his parents.
Count on/upon (নির্ভর, বিশ্বাস করা): Rahim count on (upon) my help.
Repent of (অনুতাপ করা): I repented of my past.
Sad at (দুঃখিত): All his colleagues were very sad at his transfer from this place.
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Idioms
At times (মাঝে মাঝে): He at times comes here.
Gala day (বিশেষ দিন): The Eid–Ul-Fitr is a gala day for Muslims.
Give in (বশ্যতা স্বীকার করা): We will never give in to our enemies.
Laughing stock (হাসির পাত্র)— He is a laughing stock to all.
Maiden speech (প্রথম বক্তৃতা): His maiden speech fell flat on the audience.