ㄐㄩˇㄕㄡˇㄌㄠˊjǔshǒuzhīláo

举手之劳
  1. 那樣簡單毫不費力形容事情容易費力 舉手之勞何必推辭?」。

as easy as lifting one's hand (idiom)​; no effort at all, you only have to lift a finger
leicht von der Hand gehen