Exchange ratio : বিনিময় অনুপাত;
Related Words
exchange greetings  exchange rate  exchange ratio  See Words Also In
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Appropriate Prepositions
Deaf to, of, in (না শোনা, বধির হওয়া): The boy is deaf to his father’s advice. This man is deaf of/in one ear.
Genius for (দক্ষতা): Nazrul had a genius for convincing girls.
Make of (কোনো উপকরণ দ্বারা সরাসরি তৈরী বোঝাতে): This necklace is made of gold.
Plead for (ওকালতি করা): He pleads for justice.
Remind of (স্মরণ করিয়ে দেওয়া): He reminded me of his request to lend him some money.
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Idioms
Bring to light (disclose-প্রকাশ করা) The police brought the secret to light.
Crocodile tears (মায়াকান্না): He shed crocodile tears at our misery.
Make hay while sun shines (ঝোপ বুঝে কোপ মারা) You should try to make hay while sun shines.
Pick one’s pocket (পকেট মারা)— He tried to pick my pocket.
Slip of the pen (লেখায় অসতর্কতাবশত সামান্য ভুল): The mistake is due to a slip of the pen.