uncap
verb [ T ] uk/ʌnˈkæp/ us/ʌnˈkæp/ -pp-
(REMOVE CAP)
揭掉（某物的）盖子
to remove the cap (= lid or cover) from something
He uncapped the bottle and poured out some rum. 他打开瓶盖，倒出一些朗姆酒。
(ADJUST MODEM)
（尤指为了在上网时不向网络供应商付费而）对调制调解器做一些调整
to make small changes to a modem (= device for connecting to the internet), especially in order to use the internet without paying a particular internet service provider