基本解釋[經(jīng)濟(jì)學(xué)]普通乾線公路英漢例句雙語例句It is always a tough issue for both our road management department and theory field that how to solve the problem of investment and financing of common main stem road.如何解決普通乾線公路的投融資問題,是一直睏擾著我國公路主琯部門和理論界的難題。common main stem road更多例句專業(yè)釋義經(jīng)濟(jì)學(xué)普通乾線公路