倒背如流 [－－－－]

Jyutping dou3 bui6 jyu4 lau4
Pinyin dào bèi rú liú

Definitions (粵典–words.hk)
  1. 語句
    掉​返轉​背​都​好​流暢​；​形容​記得​好​熟
    to remember something really well; lit. to recite reversely fluently

倒背如流 [－－－－]

Jyutping dou2 bui3 jyu4 lau4
Pinyin dào bèi rú liú

Definitions (CC-CEDICT)
  1. to know by heart (so well that you can recite it backwards)
Definitions (Wiktionary)
  1. phrase, idiomatic
    to know something by heart
    (syn.) 倒頭念, 倒头念
Examples (粵典–words.hk)
  1. Cantonese
    倒背如流
    倒背如流
    dou3 bui6 jyu4 lau4
    • to remember something really well