基本解釋[經(jīng)濟(jì)學(xué)]變相貿(mào)易壁壘英漢例句雙語例句In fact, the barrier is a covert form of trade protection.綠色壁壘的實(shí)質(zhì)是變相的貿(mào)易保護(hù)。covert trade barrier更多例句專業(yè)釋義經(jīng)濟(jì)學(xué)變相貿(mào)易壁壘