creep up onsb
—phrasal verbwithcreepverb[Iusually+ adv/prep]uk/kriːp/us/kriːp/crept|crept
If afeelingorstatecreepsup on you, youstarttoexperienceit sograduallythat you do notrealizeit.
不知不觉中体验到（某种情感或状态）
It was only after Iturned60 thatoldagebegantocreepup on me.上了60岁之后，我才感觉自己在不知不觉中已开始变老了。