آشنایی دقیق با موضوعی مانند فیلم موسیقی کتاب و . . .
To be extremely familiar with a particular subject, field, or piece of writing, film, music, etc. Primarily heard in UK.
I've read this book so many times, I know it backwards.
... [مشاهده متن کامل]
You should ask Samantha about your car. She knows engines backwards.
... [مشاهده متن کامل]