ignorance

n.无知，愚昧；不知道

idolize, idolise, idyll, idyllic, idyllically, ie, ieur, if, if any, if necessary, if only, igloo, igneous, ignite, ignition, ignoble, ignobly, ignominious, ignominiously, ignominy, ignoramus, ignorant, ignorantly, ignore, iguana, ikon, il-, ilex, ilk, ill, ill-advised, ill-advisedly, ill-assorted, ill-bred, ill-considered, ill-defined, ill-disposed, ill-educated, ill-fated, ill-favoured, ill-founded,