Radio active : তেজস্ক্রিয়;
Related Words
radio active  radio activity  radio-activity  radioactive  radioactivity  See Words Also In
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Appropriate Prepositions
Abound with(ছেয়ে থাকা): They live in a region that abounds with oil.
Add to (বৃদ্ধি করা, যোগ করা): The doll-dance in the exhibition added to our pleasure.
Convince of(বিশ্বাস হওয়া): I am convinced of your efficiency.
Relevant to (প্রাসঙ্গিক): Your answer is not exactly relevant to my question.
Senior to (বয়সে বড়): He is senior to me by two years.
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Idioms
All at once - (হঠাৎ): I feel terribly sleepy all at once.
At a snail's pace (very slowly – খুব ধীর গতিতে) The economy of Bangladesh is growing at a snail’s pace.
Give one’s right arm (বিপদের ঝুকি নেয়া): I will give my right arm if I could manage the tickets.
To and fro (hither and thither, এদিক ওদিক)-The man is walking to and fro.
To meet trouble half-way (পুরোপুরি মোকাবেলার আগেই হাল ছেড়ে দেয়া): He met trouble half way after getting the instructions.