Betatron : বৃত্তাকার পথে ইলেকট্রনের গতিবেগ বৃদ্ধি করার যন্ত্র;
Related Words
bathroom  be torn  betatron  better ment  betterment  bittern  bitterns  See Words Also In
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Appropriate Prepositions
Apologize to (ক্ষমা প্রার্থনা করা, দুঃখসহ ত্রুটি স্বীকার করা): The student apologized to the Principal for adopting unfair means in the examination.
Conform to (নিয়মনীতি অনুসরণ করা): The employees have to conform to a strict dress code.
Consent to(মত দেওয়া): My father did not consent to the proposal of my sister’s marriage.
Cure of, for(রোগমুক্ত হওয়া): This man was cured of This drug is a cure for typhoid.
Sentence to, for (দন্ডাদেশ দেওয়া): He was sentenced to death for murder.
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Idioms
At last (in the end – অবশেষে) He tried hard, and at last, succeeded in achieving his goal.
Bring to book (reproach-Start- ভর্ৎসনা করা) The father brought his son to book for his failure in the exam.
In full swing (পুরোদমে): The school is in full swing after the vacation.
Make head or tail – (মাথামুন্ডু বুঝা) – I cannot make head or tail of what you say.
Pass sth/sb off as sth/sb (মিথ্যা পরিচয় দেয়া; Pretend – ভান করা): They were trying to pass off these shirts as genuine Armani.