Unpredictable : অনির্দেশ্য; অনিশ্চিত; যার সম্বন্ধে আগে থেকে বলা যায় না;
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Appropriate Prepositions
Attend to(মনোযোগ দেওয়া): Please attend to my advice.
Careful of (সতর্ক): He is very careful of his fault.
Conceal from(লুকানো) Do not conceal anything from me.
Contemporary of (সমসাময়িক): William Wordsworth was a contemporary for greater efficiency.
Destitute of (নিঃস্ব; বিবর্জিত): He is destitute of any friend here.
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Idioms
At last (in the end – অবশেষে) He tried hard, and at last, succeeded in achieving his goal.
Easy and free (অমায়িক): The boy is easy and free, so he has many friends.
Foul play (অসদাচারণ করা): We feared that he had met with foul play.
Moot point (অমীমাংসিত বিষয়): Dowry system is still a moot point in Bangladesh.
Weal and woe (joy and sorrow, সুখ দঃখ) —Human life is full of weal and woe.