基本解釋[經(jīng)濟(jì)學(xué)]改良投資英漢例句雙語例句Fast increasing investment in fixed assets, bettering investment structure.今年以來，固定資産投資加快增長。bettering investment更多例句專業(yè)釋義經(jīng)濟(jì)學(xué)改良投資