Painstaking : কষ্টসহিষ্ণু, যত্নশীল;
Related Words
pains-taking  painstaking  See Words Also In
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Appropriate Prepositions
Assent to(সম্মতি দেওয়া): The President has assented to the bill.
Attention to(মনোযোগ): He has no attention to his studies.
Die of, for, from (মারা যাওয়া): He died of cholera. He died for his country. He died from an injury.
Guilty of (অপরাধী/দোষী): The convict was guilty of murder.
Repent of (অনুতাপ করা): I repented of my past.
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Idioms
Bird’s eye view - (ভাসা ভাসা দৃশ্য, হালকাভাবে দর্শন): We took a bird’s eye view of the scenery.
Easy and free (অমায়িক): The boy is easy and free, so he has many friends.
Now and then (মাঝে মাঝে): He comes here now and then.
Slip of the pen (লেখায় অসতর্কতাবশত সামান্য ভুল): The mistake is due to a slip of the pen.
To the point (সঠিক) - The boy answered the question to the point.