【詞語】銅壁鐵墻
【拼音】tóng bì tiě qiáng【解釋】像銅鐵筑成的墻壁一樣。原比喻防御十分堅固,不可摧毀。也比喻團結一致。轉自http://www.kuaic.com/zidian6
銅壁鐵墻漢字解釋:銅 壁 鐵 墻
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