বিনিময়-হার: [Noun] Rate of exchange.
Related Words
বিনিময় করা  বিনিময়-পত্র  বিনিময়-হার  See Words Also In
1.Google-Translator 2.Wikipedia 3.Wiktionary.org
Appropriate Prepositions
Ask for (কোনো কিছু চাওয়া): Do not ask him for any help because he doesn’t like to help anyone.
Consist of(গঠিত হওয়া): The committee consists of ten members.
Control over(নিয়ন্ত্রণ): He has no control over his sons.
Look at (তাকানো): Students look at the blackboard.
Welcome to (স্বাগত জানানো): You are welcome to our new office.
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Idioms
A bed of roses - (সুখকর অবস্থা): Life is not a bed of roses.
Bear in mind (মনে রাখা): Always bear in mind that you are a daughter of a reputed person.
End in smoke (ব্যর্থ হওয়া): All his plans ended in smoke.
From hand to mouth (দিন আনে দিন খায়): The poor man live from hand to mouth.
Ins and out (খুঁটিনাটি): I know ins and outs of this file.