竹籃打水,一場空 [-篮----场-]

Jyutping zuk1 laam4 daa2 seoi2 , jat1 coeng4 hung1
Pinyin zhú lán dǎ shuǐ , yī cháng kōng

Definitions (CC-CEDICT)
  1. using a wicker basket to draw water (idiom); wasted effort