Refractor : প্রতিসারক মাধ্যম; প্রতিসারক দূরবীক্ষণ;
Related Words
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Appropriate Prepositions
Creep up (বৃদ্ধি পাওয়া): The prices of are creeping up day by day.
Dwell in (বাস করা): He dwells in a tall apartment.
Perfect for (সঠিক, মানানসই): The new book is perfect for you.
Remedy for (প্রতিকার): There is no remedy for his misbehavior.
Take after (সদৃশ হওয়া, একই রকম হওয়া): The boy takes after his brother.
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Idioms
Call in question (সন্দেহ করা): No one can call his honesty in question.
For good (চিরদিনের জন্য): He left the house for good.
Red letter day (স্মরণীয় দিন): The 16th December is a red letter day for us.
Silver living (hope- আশা বা ভালো দিক): Every cloud has a silver lining.
To the backbone (to the core, হাড়ে হাড়ে) —The boy is wicked to the backbone.