英漢例句雙語例句First, a major applied research and development effort to improve design, lower costs, and develop global industry standards for cookstoves.首先，要有一個重要的應(yīng)用研究和開發(fā)項目，來改善設(shè)計、降低成本，并制定廚灶產(chǎn)業(yè)的全球性標準。global design effort更多例句