Radio-activity : তেজস্ত্রিুয়তা;
Related Words
radio activity radio-activity radioactivitySee Words Also In
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Appropriate Prepositions
Consist of(গঠিত হওয়া): The committee consists of ten members.
Convince of(বিশ্বাস হওয়া): I am convinced of your efficiency.
Count for(গণ্য বা বিবেচিত হওয়া): There can be no lasting peace without true democracy in which the people play a part and count for something.
Entitled to (অধিকারী): He is entitled to a reward for honesty.
Urge upon (আহবান জানানো): She urged upon his son the importance of being honest.
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Idioms
As ill-luck would have it (unfortunately- দুর্ভাগ্যবশত) A child was born to them but, as ill-luck would have it, it died when it was eight days old.
Back and forth (to and fro-এদিক ওদিক – adv.) The mad man was walking back and forth in the doctor’s chamber.
In black and white – (লিখিতভাবে) – Put forward your proposal in black and white.
Let loose (বল্গাহীনভাবে ছেড়ে দেয়া): He let his horse loose in the field.
With the sweat of one’s brow (মাথার ঘাম পায়ে ফেলে) — He earns his livelihood with the sweat of his brow.