長吁短嘆 [长－－叹]

Jyutping coeng4 heoi1 dyun2 taan3
Pinyin cháng xū duǎn tàn

Definitions (CC-CEDICT)
  1. long moan and short gasp (idiom); continually moaning and groaning in pain
Definitions (Wiktionary)
  1. phrase, idiomatic
    to utter sighs and groans; to moan and groan