心無二用 [－无－－]

Jyutping sam1 mou4 ji6 jung6
Pinyin xīn wú èr yòng

Definitions (CC-CEDICT)
  1. one cannot concentrate on two things at the same time
Definitions (Wiktionary)
  1. phrase, idiomatic
    one cannot keep one's mind on two things at the same time; one should concentrate on one's work
    (syn.) 心不兩用, 心不两用
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）