一木難支 [－－难－]

Jyutping jat1 muk6 naan4 zi1
Pinyin yī mù nán zhī

Definitions (CC-CEDICT)
  1. lit. a single post cannot prop up a falling house (idiom)
  2. fig. one is helpless alone
Definitions (Wiktionary)
  1. phrase, idiomatic
    "one post cannot hold a falling structure"; just one person cannot save something doomed to fail
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）