[lù lì yī xīn]   

戮    力    壹    心    戮力：并力，合力。指齐心协力。同“戮力同心”。

戮力：并力，合力。指齐心协力。同“戮力同心”

Pull together and work hard as a team

戮力同心    戮力一心    戮力齐心    戮力壹心