doubly
/ˈdʌblɪ; `dʌblɪ/ adv
(used before adjs 用於形容词之前)
1 to twice the extent or amount 加倍地
Make doubly sure that all the doors are locked, ie check twice. 再查看一下是否所有的门都锁好了.
2 in two ways 两方面地; 双重地
She is doubly gifted: as a writer and as an artist. 她又是作家又是艺术家, 有双重天赋.