Be very familiar with and proud of what one is taking 如数家珍
🎁familiar 伙伴🎁be familiar with 熟悉🎁family member(s 家庭成員🎁classmate (s/ class member(s 班級成員🎁proud 自豪的🎁proud of 引以為傲🎁learn lessons 引以为戒
👩‍🏫 好像計算自家所珍藏的珠寶一樣。比喻敘述事物明晰熟練
🌟know it like the back of your hand 瞭如指掌🎁know it like the back of your hand 瞭如指掌✋🏻🎁skilled 熟練🎁skill (s 技能