noun · the space or relationship between two things; intermediate or inter-

加强校际交流可以促进资源共享。

noun · a boundary, edge, or limit of a physical area

太阳落山了，天际边浮现出一片红霞。

noun · to meet with or experience specific circumstances or luck

他的一生际遇十分坎坷。

directional · a particular time, moment, or set of circumstances

在此新春之际，祝大家身体健康。