Federation of states : রাষ্ট্রামেল;
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Appropriate Prepositions
Alarm at, by, for(আশংকা করা/শঙ্কিত হওয়া): I was not alarmed at/by the news, but I was alarmed for their safety.
Bask in(রোদ পোহানো): The boys and girls are basking in the sun right now.
Cope with (এঁটে ওঠা; তাল মিলিয়ে চলা): They cannot cope with so much work.
Cure of, for(রোগমুক্ত হওয়া): This man was cured of This drug is a cure for typhoid.
Infested with (অতিষ্ঠ): The room is infested with rats.
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Idioms
All at once - (হঠাৎ): I feel terribly sleepy all at once.
As a whole (মোটের উপর, সম্পূর্ন এক মনে করে-adv.) Look at life as a whole and you will see that it is meaningful.
Brown study (দিবাস্বপ্ন): The girl is absorbed in a brown study.
Show good manner (ভালো আচরণ প্রদর্শন ): You should show good manner in the company of young ladies.
Tooth and nail (strongly, প্রবলভাবে)-He fought tooth and nail against his enemy.