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Jyutping mong6 can4 mok6 kap6
Pinyin wàng chén mò jí

Definitions (CC-CEDICT)
  1. lit. to see only the other rider's dust and have no hope of catching up (idiom)
  2. to be far inferior
Definitions (粵典–words.hk)
  1. 語句
    兩者​比​較​之下​,​一方​遠比​另一方​優秀
    can't hold a candle to sby or sth; not as excellent as sby
    • 你計數計得咁快,我真係望塵莫及。
      你计数计得咁快,我真系望尘莫及。
      nei5 gai3 sou3 gai3 dak1 gam3 faai3, ngo5 zan1 hai6 mong6 can4 mok6 kap6
      I cannot hold a candle to you when it comes to arithmetics.
Definitions (Wiktionary)
  1. phrase, humble, idiomatic, usually
    to be far inferior
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    你计数计得咁快,我真系望尘莫及。
    你計數計得咁快,我真係望塵莫及。
    nei5 gai3 sou3 gai3 dak1 gam3 faai3, ngo5 zan1 hai6 mong6 can4 mok6 kap6
    • I cannot hold a candle to you when it comes to arithmetics.