chōng​dòng​hàn​niú

huge collection of books

Senses

充栋汗牛/ 充棟汗牛 chōng​dòng​hàn​niú huge collection of books

(variant form) an immense number of books; literally describing books that fill a house to the rafters and make the oxen carrying them sweat

References

variant 汗牛充栋/汗牛充棟 充栋汗牛/充棟汗牛