同根派生 price floor相關(guān)詞英漢例句For a few months the price of tin on world markets fell through the official floor.在幾個(gè)月的時(shí)間裡，世界市場(chǎng)上的錫價(jià)猛跌到低於官方的最低限價(jià)。price floor更多例句