锕类任何化学性质相似, 原子序数在89 ( 锕 ) 与103 ( 铹 ) 之间变化的放射性元素. Any of a series of chemically similar, radioactive elements with atomic numbers ranging from 89 ( actinium ) through 103 ( lawrencium ).
Why are they so malevolent to me?他们为什么对我如此恶毒?We must thwart his malevolent schemes.我们决不能让他的恶毒阴谋得逞.Her stare was malevolent, her mouth a thin line.她目光狠毒，唇紧抿。...