戮力同心 [－－－－]

Jyutping luk6 lik6 tung4 sam1
Pinyin lù lì tóng xīn

Definitions (CC-CEDICT)
  1. concerted efforts in a common cause (idiom); united and working together
Definitions (Wiktionary)
  1. phrase, idiomatic
    to join forces and make concerted efforts to accomplish something
    (syn.) 戮力一心