常見(jiàn)例句PEARCE, D.W.,WARFORD, J. J.,.World without End:Economic,Environment and sustainable Development[M].London:Oxford University Press 1993 王繼和.;中國(guó)西北荒漠區(qū)持續(xù)農(nóng)業(yè)與沙漠綜合治理國(guó)際學(xué)術(shù)交流會(huì)論文集[C] 返回 Warford