| 单词 | radioactivity |
| 释义 | radioactivity radioactivity /ˌreɪ.di.əʊ.ækˈtɪv.ɪ.ti/ aep /-oʊ.ækˈtɪv.ə.t̬i/ noun [U] F0 the quality that some atoms have of producing energy, which can be very harmful to health Thesaurus+: ↑Radiation and radioactivityF0 the energy produced by atoms in this way: » A dangerous amount of radioactivity was released into the environment last month.Thesaurus+: ↑Radiation and radioactivity |
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