常見例句雙語例句The largest developed economies are struggling and weak prospects for next year are being scaled back further.最大已開發(fā)經(jīng)濟(jì)體都在預(yù)期明年弱勢(shì)前景奮斗。權(quán)威例句But that still leaves the problem of smoothing production at the factory to preserve the economies of scale, which even in modern scaled-down plants require a throughput of about 250, 000 cars a year.ECONOMIST: Fighting back 返回 scale economies