The prices of polymers and suchlike materials will decrease.聚合物及类似材料的价格会下降。Then we got involved with trying to find polymers that attenuate radiation.接著我们致力于找出能够减弱辐射的聚合物.Proteins and DNA are polymers.蛋白质和脱氧核糖核酸都是聚合体....
The world's top 400 - meter hurdler stole the at the track and field meet.在这次田径运动会上,这位世界头号400米跨栏运动员大出风头.Liu, the hurdler, is in ads for at least 16 companies, including Nike and Coke.事实上, 跨栏运动员刘翔, 代言了至少16家企业, 其中就包括耐...