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Open the tool →汗牛塞屋 (hàn niú sāi wū) is a Chinese idiom (chengyu) meaning “an immense collection of books”.
汗牛塞屋 is pronounced hàn niú sāi wū in Mandarin Chinese.
Literally, 汗牛塞屋 means “Ox sweats, house stuffed (with books)”. It is used to mean “an immense collection of books”.
汉牛:使牛出汗。指藏书太多,书运输时牛累得出汗,存放时可堆至屋顶。形容藏书非常多