汗牛充棟hàn niú chōng dòngenough books to make the pack-ox sweat or to fill a house to the rafters—an immense collection of books;over abundant
? 古今著作，是以汗牛而充棟，但我們可能找出樵夫漁父的著作來？ (《魯迅選集》Ⅳ—133) Whole cartloads and housefuls of books have been written since ancient times,but can we find any by wood cutters or fishermen? 汗牛充棟han niu chong dongenough books to make the pack-ox sweat or to fill a house to the rafters—an immense collection of books 汗牛充棟enough books to make the pack-ox sweat or to fill a house to the rafters—immense numbers of books 汗牛充棟hàn niú chōnɡ dònɡ充：裝滿；棟：原指房屋的脊檁，這里借指房屋。用牛運(yùn)書，牛要累得出汗；用屋子放書，要放滿整個(gè)屋子。比喻藏書或著作很多。an immense number of books, an immense collection of books |