SYN: know by heartمعانی:
1 ) To learn something very thoroughly; to memorize something. چیزی را حفظ کردن - چیزی را از بر کردن
💠 Ask Becky to recite the poem—she learned it by heart.
... [مشاهده متن کامل]
💠 You don't have to learn these principles by heart, we just want you to have a basic understanding of them.
2 ) Fig. to learn something so well that it can be written or recited without thinking
آگاهی و آشنایی کامل داشتن با چیزی/موضوعی
💠 The director told me to learn my speech by heart. I had to go over it many times before I learned it by heart.
