基本解釋[經(jīng)濟(jì)學(xué)]下降頂點(diǎn)趨勢詞組短語短語Descending g Tops 下降頂點(diǎn)趨勢descending tops更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)下降頂點(diǎn)趨勢