- 齐心协力 qíxīnxiélì to make concerted effortsto work with a common purpose; to pull together and work as one to achieve a goal; also written as [[齐心合力|齊心合力|qi2 xin1 he2 li4]]
- 同心协力 tóngxīnxiélì to make concerted effortsto work with a common purpose; to pull together and work as one
- 协力同心 xiélìtóngxīn to unite in heart and effortTo work together with a single heart and mind; to unite efforts and be of one mind.
- 协力车 xiélìchē tandem bicyclea bicycle or vehicle designed to be powered by two or more people pedaling together, often found for rent at tourist sites and amusement parks
- 经济协力开发机构 jīngjìxiélìkāifājīgòu OECDOrganization for Economic Cooperation and Development; also written as [[经济合作与发展组织|經濟合作與發展組織|jing1 ji4 he2 zuo4 yu3 fa1 zhan3 zu3 zhi1]]