impregnable as strong as iron be secure against assault strongly fortified
impregnable 英 [ɪmˈpreɡnəbl] 美 [ɪmˈpreɡnəbl]
as strong as iron
be secure against assault
strongly fortified
固蛇用英文怎麼說
固表用英文怎麼說
固表止汗用英文怎麼說
固話用英文怎麼說
固質用英文怎麼說
英語詞典收錄了最新的漢英詞典和英漢詞典,總共有200多萬個詞條,詞庫仍在不斷更新中。