常見例句用作名詞 (n.)In 1957 we decided to import the technical data and equipment for manufacturing vinylon, but that decision was held up somehow.本來一九五七年我們已經(jīng)決定從國外購買生產(chǎn)維尼綸的資料和設(shè)備，后來耽誤了。 返回 vinylon