The towers are made of steel cased in granite.这些塔楼是钢结构，花岗岩贴面。academics living in ivory towers生活在象牙塔中的学者the silhouette of chimneys and towers烟囱和塔楼的轮廓...
这些发现是3年多研究的成果。The findings are the fruit of more than three years research.他被指控剽窃同事的成果。He was accused of plagiarizing his colleague's results.多年工作的成果全都白费了.The results of years of work went down the drain....