事關

to concern / on (some topic) / about / concerning / to have importance for

matter / thing / item / work / affair / CL:件[jian4],樁|桩[zhuang1],回[hui2]

mountain pass / to close; to shut; to turn off / to confine; to lock (sb) up; to shut (sb in a room, a bird in a cage etc) / to concern; to involve

the implications are profound / the ramifications are huge / (of a decision etc) consequential