Radio-activity : তেজস্ত্রিুয়তা;
Related Words
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Appropriate Prepositions
Add to (বৃদ্ধি করা, যোগ করা): The doll-dance in the exhibition added to our pleasure.
Adorn with(সাজানো/সজ্জিত করা): Adorn the car with flowers.
Agree with(ব্যক্তির সাথে একমত হওয়া): I agree with you.
Despair of (নিরাশ হওয়া): Do not despair of further improvement.
Die of (রোগে মরা): Many people died of cholera.
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Idioms
A bed of roses - (সুখকর অবস্থা): Life is not a bed of roses.
At the eleventh hour (at the last moment-শেষ মুহুর্তে adv.) The patient was in a dangerous condition and the doctor came at the eleventh hour.
Pandora’s box (আপাতঃ দৃষ্টিতে ভালো মনে হলেও আসলে ভালো নয়)—His words proved to be Pandora’s box.
Red tape (official formalities, অফিসের কাজ)— You would not believe the red tape involved in getting the required permits.
Run a risk (ঝুকি নেয়া) — He ran a risk to save his life.