ㄒㄧㄝˊxiéㄌㄧˋ

  1. 共同努力宋書·七七·》:東岸強弱不敵節下協力。」拍案驚奇·二四》:就要商量幾家協力出資山頂。」合力

to unite in common effort
agir de concert, unir ses forces, conjuguer ses efforts, coopérer, collaborer
Mitwirkung (S)​, mitwirken (V)​, kooperativ (Adj)​