一夫当关 yīfūdāngguān to defend a strategic pass Definitions Defs Origin Strokes Stroke Words Sentences Sents 一夫当关，万夫莫开 yīfūdāngguānwànfūmòkāi impregnable one man guarding the pass can stop ten thousand from entering; describes a strategic pass that is easy to defend and difficult to attack
