擔沙塞海 [担－－－]

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Pinyin dān shā sāi hǎi

Definitions (粵典–words.hk)
  1. 語句
    比喻​做徒​勞無​功​嘅​事
    to describe things or efforts that are in vain
Definitions (Kaifangcidian)
  1. 勞而無功 – 劳而无功
  2. 杯水車薪 – 杯水车薪
  3. 無濟於事 – 无济于事
  4. 吃力不討好 – 吃力不讨好