Heliometer : যে যন্ত্রের সাহায্যে জ্যোতিষ্ক সমুহের ব্যাস নিখুতভাবে মাপা যায়
Related Words
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Appropriate Prepositions
Arrange for(ব্যবস্থা করা): We have arranged everything for our study tour.
Authority over (কর্তৃত্ব, আধিপত্য): She has no authority over his growing daughters.
Bad at (অদক্ষ): He is not bad at English.
Run into (জড়িয়ে পড়া): He had run into debt.
Substitute for (বদলে দেওয়া): This action is substitute for that.
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Idioms
At a discount (অনাদৃত) Female education is no longer at a discount now.
As a whole (মোটের উপর, সম্পূর্ন এক মনে করে-adv.) Look at life as a whole and you will see that it is meaningful.
Fair and square (সৎ): The learned persons should be fair and square.
Fish in a troubled water (এলোমেলো অবস্থার সুযোগ নেয়া): He made a lot of money by fishing in a troubled water.
Give one’s right arm (বিপদের ঝুকি নেয়া): I will give my right arm if I could manage the tickets.