Spectrograph : বর্ণালীলেখ; স্পেক্ত্রোগ্রাফ; বর্ণালি যন্ত্র;
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Appropriate Prepositions
Absent from(অনুপস্থিত থাকা): I was absent from the class yesterday.
Agree with(ব্যক্তির সাথে একমত হওয়া): I agree with you.
Complain to (কারো কাছে নালিশ করা): You should not complain to his parents.
Dedicate to (উৎসর্গ করা): His pfe is dedicated to the welfare of the country.
Hope for (আশা করা): Let us hope for the best.
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Idioms
Cut a sorry figure (খারাপ ফল করা): He cuts a sorry figure in the examination.
From cradle to grave (দোলনা থেকে কবর পর্যন্ত): Everyone has to learn from cradle to grave.
From hand to mouth (দিন আনে দিন খায়): The poor man live from hand to mouth.
Read between the lines (understand the significance, অন্তনিহিত অর্থ বুঝা) Try to read between the lines of the letter.
To the utmost (যথাসাধ্য) - I tried to the utmost of my ability to have a job.