Cosmic rays : মহাজাগতিক রশ্মি;
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Appropriate Prepositions
Averse to (বিমুখ): Rahim was averse of your various problems.
Compensate for(ক্ষতিপূরণ করা): I will compensate him for the loss.
Dwell upon (আলোচনা করা): They dwell long upon the matter.
Easy of (সরল): The teacher is easy of approach.
Hanker after (আকাঙ্ক্ষা/লোভ করা): He hankers after riches.
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Idioms
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Be all and end all (the ultimate out come- চরম পরিণতি—n) A loss of one million taka was the be all and end all of the projects.
In one’s teens (তের থেকে উনিশ বছর বয়সের মাঝে): She is yet in her teens.
In the long run (পরিণামে): You will have to suffer in the long run.
With might and main (যথা শক্তি দিয়ে) —He tried with might and main to help me.