/ˌreɪdiəʊˈæktɪv ||; ˌredɪoˈæktɪv/adj
sending out powerful and very dangerous rays that are produced when atoms are broken up. These rays cannot be seen or felt but can cause serious illness or death. 放射性的:
the problem of the disposal of radioactive waste from power stations发电站放射性废料的处理问题☞Look at radiation. 参看radiation。 ➔radioactivity /ˌreɪdiəʊækˈtɪvəti ||; ˈredɪˌoækˈtɪvətɪ/ noun [U]
radioactive/͵redIoˋæktIv; ˌreIdiəʊˈæktIv◄/adj a radioactive substance sends out RADIATION (=a form of energy that can harm or kill people) 具有放射性的: radioactive waste 放射性废料 —radioactivity /͵redIoækˋtIvətI; ˌreIdiəʊækˈtIvəti or ˌreIdiəʊækˈtIvIti/n [U] high levels of radioactivity 高强度的放射性