UPVn.非受火压力容器upadv.向上；起来；上升；往上prep.向上adj.向上的；上行的n.上升v.上升；增加upronotal carina前背隆线up-to-datelyadv.现代化地up-market shop高档商品店up and down hill上下坡跑up-front money预付款up in the clouds脱离实际up to the eye inadj.埋头于(极忙)upchuck n. .呕吐updating problem更新算法upwelling region上涌地区