Definition
When one thing relies on another, it means that the first is contingent upon or significantly swayed by the second.
取决于；依赖
The success of the project hinges on securing funding.
这个项目的成功取决于能否获得资金。
His decision hinges upon receiving approval.
他的决定取决于是否获得批准。
Future collaboration hinges on the trust between both parties.
未来的合作取决于双方之间的信任。
If a narrative or scenario revolves around a concept or theme, it emerges from that notion or emphasizes that as its core subject.
（状态或事件）围绕着某个主题或想法展开
The film hinges upon the importance of family.
这部电影围绕着家庭的重要性展开。
Her speech hinges on environmental issues.
她的演讲围绕着环境议题展开。
The plot of the novel hinges upon themes of love and betrayal.
这本小说的剧情围绕着爱与背叛的主题展开。