







铜壁铁墙 is a Chinese idiom (chengyu) meaning “an impregnable defense”. An unyielding barrier. Literally, “bronze wall iron wall”.

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Open the tool →铜壁铁墙 (tóng bì tiě qiáng) is a Chinese idiom (chengyu) meaning “an impregnable defense”.
铜壁铁墙 is pronounced tóng bì tiě qiáng in Mandarin Chinese.
Literally, 铜壁铁墙 means “bronze wall iron wall”. It is used to mean “an impregnable defense”.
铜铁做成的墙壁。比喻防御十分坚固,不可摧毁的事物