Roentgen : এক্স-রে বা গামা-রের একক;
Related Words
roentgen  roentgenogram  rontgen rays  See Words Also In
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Appropriate Prepositions
Authority over (কর্তৃত্ব, আধিপত্য): She has no authority over his growing daughters.
Avail (oneself) of(সুযোগের স্বব্যবহার করা): I shall avail myself of the first trip to London tomorrow.
Defend against (রক্ষা করা): We will defend our country against all enemies.
Play with (খেলা করা/ মজা করা): I shall not play with him.
Shout at (চিৎকার করে ডাকা): Do not shout at your parents.
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Idioms
Head and ears (সম্পূর্ণরূপে): He is over head and ears in debt.
To play on a fiddle (অনর্থক সময় নষ্ট করা - To waste time)-He played on a fiddle by nature.
Pack up a quarrel (ঝগড়া মিটানো)— He packed up their quarrel.
Slow coach (অলস): You cannot expect much from a slow coach.
Wild goose chase (useless pursuit, পন্ডশ্রম) —Do not waste time in wild goose chase.