基本解釋優(yōu)惠關(guān)稅協(xié)定英漢例句雙語例句Preferential trade agreement (PTA): It is a form of tariff reduction, not necessarily elimination, to a selected group of countries in a certain range of products.優(yōu)惠貿(mào)易協(xié)議（PTA）：它是一種降低關(guān)稅，不消除，對選定的一組國家在一定范圍內(nèi)的產(chǎn)品。權(quán)威例句Section 203 of the Implementation Act sets forth certain rules for determining whether a good is an originating good for the purpose of implementing preferential tariff treatment provided for under the Agreement.WHITEHOUSE: The White Housepreferential tariff agreement更多例句專業(yè)釋義經(jīng)濟(jì)學(xué)優(yōu)惠關(guān)稅協(xié)定