Radioactivity : তেজস্ক্রিয়তা;
Related Words
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Appropriate Prepositions
Admit of(স্থান করা, সুযোগপ্রাপ্ত হওয়া): His offence admits of no explanation.
Astonished at(বিস্ময়-বিহবল হওয়া): We were astonished at his unexpected success.
Drop to (নিচে নামানো): Asif dropped his voice to a whisper.
Remedy for (প্রতিকার): There is no remedy for cancer.
Worry about (কোনো কিছু বা কাউকে নিয়ে উদ্বিগ্ন হওয়া): Please, don’t worry about me. I will be alright.
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Idioms
Bare word (শুধু মুখের কথা, স্বাক্ষী প্রমানহীন কথা-n) He believed your bare word and now he has been played false with.
Follow the footsteps of (পায়ে পায়ে অনুসরণ করা): People always follow the footsteps of some great man.
Red letter day (স্মরণীয় দিন): The 16th December is a red letter day for us.
Safe and sound (নিরাপদে)— He reached home safe and sound.
Short temper (রগচটা)— He is a man of short temper.