懸樑刺股 [悬梁－－]

Jyutping jyun4 loeng4 ci3 gu2
Pinyin xuán liáng cì gǔ

Definitions (CC-CEDICT)
  1. to study assiduously and tirelessly (idiom)
  2. see also 頭懸梁，錐刺股|头悬梁，锥刺股[tou2 xuan2 liang2 , zhui1 ci4 gu3]
Definitions (粵典–words.hk)
  1. 動詞
    刻苦​學習
    to study assiduously and tirelessly
Definitions (Wiktionary)
  1. phrase, idiomatic
    to study diligently