关键 + 的 + Noun
The word 关键 (guānjiàn) means "key," "crucial," or "critical." It can function as both a noun meaning "the key point" and an adjective meaning "pivotal." It is used to highlight the most important factor in a situation or decision.
时间管理是这个项目成功的关键。
shíjiān guǎnlǐ shì zhège xiàngmù chénggōng de guānjiàn.
Time management is the key to the success of this project.
在关键时刻,他做出了正确的决定。
zài guānjiàn shíkè, tā zuòchū le zhèngquè de juédìng.
At the critical moment, he made the right decision.
教育是解决这个问题的关键因素。
jiàoyù shì jiějué zhège wèntí de guānjiàn yīnsù.
Education is the key factor in solving this problem.