n.貂；貂的白毛皮
She was wearing the ermine toque she'd bought when her hair was yellow. 她戴的貂皮无沿帽是在她头发还是黄色时买的。
v.决定；决心；确定；测定
vt.逐渐削弱；暗中损害；在...下挖；从根基处损害
adj.坚定的；坚决的；果断的；确定的，既定的
adj.被侵蚀的；暗地里被破坏的
动词undermine的过去式和过去分词形式.
v.预先决定
