Perforator : ছিদ্র করিবার যন্ত্র, বেধনযন্ত্র;
Related Words
perforator  perforators  preparatory  propraetor  proprietor  proprietors  See Words Also In
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Appropriate Prepositions
Annoyed at(ব্যক্তি ছাড়া অন্যকিছুর প্রতি বিরক্ত): They were annoyed at his rough behavior.
Anxious about (কোনো কিছুর ব্যাপারে চিন্তিত বা উদ্বিগ্ন): Karim is anxious about his father’s death. Karim is anxious for getting a job.
Depend on (নির্ভর করা): Presently, the students depend on/upon guide books.
Greed for (লোভ): He has an indomitable greed for wealth.
Guess at (অনুমান করা): It is difficult to guess at the age of women.
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Idioms
Easy and free (অমায়িক): The boy is easy and free, so he has many friends.
Make head or tail – (মাথামুন্ডু বুঝা) – I cannot make head or tail of what you say.
Pave the way (সুপ্রসন্ন করা) – I am sure I can pave the way for your success.
Soft Soap (নিজ অভিপ্রায়ে/অভিসন্ধিতে তোষামোদ করা): He was expert in soft soap.
Take into account (বিবেচনা করা): Your activities should be taken into account.