







一丸泥封函谷关 is a Chinese idiom (chengyu) meaning “to seal Hangu Pass with a mud pellet”. Describes a strategically vital and easily defensible location, where a small force can guard against a large one due to the terrain's precipitous nature. Literally, “A mud pellet seals Hangu Pass”.

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Open the tool →一丸泥封函谷关 (yī wán ní fēng hán gǔ guān) is a Chinese idiom (chengyu) meaning “to seal Hangu Pass with a mud pellet”.
一丸泥封函谷关 is pronounced yī wán ní fēng hán gǔ guān in Mandarin Chinese.
Literally, 一丸泥封函谷关 means “a mud pellet seals Hangu Pass”. It is used to mean “to seal Hangu Pass with a mud pellet”.
丸泥:一点泥,比喻少;封:封闭;关:关隘。用一个小泥丸就能把函谷关封闭。形容地势险要,只要少量兵力就可以把守