短語詞組短語hang by a hair 千鈞一發(fā);岌岌可危;搖搖欲墜;危在旦夕hanging by a hair 系于一發(fā);毛式懸掛miss by a hair 一念之差Hand by a hair 危在旦昔off by a hair 差之毫厘hung by a hair 岌岌可危win by a hair 以毫發(fā)之差險勝by a single hair 一點兒 返回 by a hair