Rectangles : আয়তক্ষেত্র; সমকোণ চতুর্ভুজ; চতুষ্ক; চতুষ্কোণ; চক;
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rectangles  right angles  See Words Also In
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Appropriate Prepositions
Anxious about (কোনো কিছুর ব্যাপারে চিন্তিত বা উদ্বিগ্ন): Karim is anxious about his father’s death. Karim is anxious for getting a job.
Appoint to(নিযুক্ত করা/হওয়া): Kibria has been appointed to the post of Headmaster.
Attacked with(আক্রান্ত): He is attacked with …
Look at (তাকানো): Students look at the blackboard.
Wish for (প্রত্যাশা করা): Everybody wish for happiness.
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Idioms
Bring to book (reproach-Start- ভর্ৎসনা করা) The father brought his son to book for his failure in the exam.
Crocodile tears (মায়াকান্না): He shed crocodile tears at our misery.
Now and then (মাঝে মাঝে): He comes here now and then.
Of course (অবশ্যই): Of course, you know what that meant.
Speed money (ঘুষ; উৎকোচ): He hankers after speed money.