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Open the tool →斗榫合缝 (dǒu sǔn hé fèng) is a Chinese idiom (chengyu) meaning “to fit perfectly and seamlessly”.
斗榫合缝 is pronounced dǒu sǔn hé fèng in Mandarin Chinese.
Literally, 斗榫合缝 means “Mortise and tenon fit perfectly”. It is used to mean “to fit perfectly and seamlessly”.
榫:榫头,竹、木、石制器物或构件上利用凹凸相接处凸出的部分榫头和卯眼非常适合,不露缝隙。形容手艺高超。