ants gnawing at a bone-a concentration of small machines on a big job;little strokes fell great oaks;plod away at a big job bit by bit ? 工人們采取～的方法，使用小機(jī)械加工，造出了大型鑄造機(jī)，完成了這項工作。The workers used what they called the ants-gnawing-at-a-bone method to finish the job and built the giant casting machine with small machine tools.
螞蟻啃骨頭ma yi ken gu tou
plod away at a big job bit by bit
螞蟻啃骨頭
ants gnawing a bone—plod away at a big job bit by bit; perseverance spells success
螞蟻啃骨頭mǎ yǐ kěn ɡǔtou
比喻用微小的力量，堅持不懈，持之以恒，就能夠完成非常艱巨的任務(wù)。plod away at a big job bit by bit, ants gnawing at a bone