他们需要卡车把产品运往这一广阔地区里的各个地方.They needed trucks to distribute their produce over this wide area.各个学院和其他建筑广阔地散落在全城和市郊.Its colleges and other buildings are scattered widely throughout the city and its outskirts....
the many isotopes of carbon碳的诸多同位素Tritium is one of the mildest radioactive isotopes.氚是最和缓的放射性同位素之一.The inferno spewed a deadly plume of radioactive isotopes into the atmosphere.这个象炼狱般的地方将一缕致死的放射性同位素喷入大气层....