汗牛充栋
hàn​niú​chōng​dòng

vast collection

  • created sense approved 汗牛充栋/汗牛充棟 · hàn​niú​chōng​dòng · vast collection

    汗牛充栋 / 汗牛充棟

    hàn​niú​chōng​dòng

    vast collection

    lit. enough books to make a pack-ox sweat or to fill a house to the rafters; fig. a vast number of books

    这座图书馆的藏书汗牛充栋。

    idiom

    created sense