/ˈfɔ:mɪdəbl ||; ˈfɔrmɪdəbḷ/adj1 causing you to be quite frightened 相当可怕的: His mother is a rather formidable lady. 他母亲令人望而生畏。
2 difficult to deal with; needing a lot of effort 难对付的；艰巨的；繁重的: Reforming the education system will be a formidable task. 改革教育制度将是一件艰巨的任务。