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Jyutping lou5 mau4 sam1 syun3
Pinyin lǎo móu shēn suàn

Definitions (CC-CEDICT)
  1. rigorous schemes and deep foresight (idiom); astute and circumspect
Definitions (Wiktionary)
  1. phrase, idiomatic
    experienced and astute; circumspect and far-seeing; scheming and calculating
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)