基本解釋n.保護(hù)；水土保持；琯理委員會(huì)同根派生 conservancies相關(guān)詞英漢例句用作名詞 (n.)They spent months of toil on the water conservancy project.他們爲(wèi)這項(xiàng)水利工程辛辛苦苦地乾了幾個(gè)月。conservancies更多例句