Does not success or failure hinge on this?

成败之机，其在斯乎？

The answers hinge on supply and demand.

答案取决于供给与需求。

The home is the hinge on which family life turns.

家庭生活要有个家才能维系。

For the most part, both of the plans hinge on taxes.

两方的计划都在最大程度上依赖税收的变革。

The fate of the project hinge on the decision of the council.

这项工程的命运取决于委员会的决定。