radioactives + plural verb
指这类物质时常用复数形式 radioactives，谓语动词用复数。
Radioactives are kept in sealed lead containers.
放射性物质被存放在密封的铅容器中。
任何放射性物质
a radioactive substance
任何放射性物质
Any radioactive substance.
The workers wore protective suits while moving the radioactives to the new storage room.
工人们穿着防护服，把这些放射性物质搬到新的储藏室。
用法提示：这里 radioactives 是名词复数形式，指多种放射性物质。
A radioactive can remain dangerous for many years after it is sealed away.
一种放射性物质在被密封多年后仍可能具有危险性。
用法提示：句中 a radioactive 是名词单数，表示一种放射性物质。
Please check the label before you dispose of any radioactive.
处理任何放射性物质之前，请先查看标签。
用法提示：any radioactive 在这里作名词，泛指任何放射性物质。
指这类物质时常用复数形式 radioactives，谓语动词用复数。
Radioactives are kept in sealed lead containers.
放射性物质被存放在密封的铅容器中。
加 the 特指某一批已知的放射性物质。
The radioactives from the lab were shipped under guard.
实验室的那批放射性物质在押运下被运走了。
grammar · medium
易错句子Radioactive is harmful to the human body.
正确表达Radioactives are harmful to the human body.
radioactive 在这里是可数名词，单数形式不能不带限定词单独作主语；汉语名词没有单复数形态变化，学习者容易漏掉词尾 -s。改成复数 radioactives 后，主语与谓语 are 一致，才符合英语可数名词的用法。
grammar · medium
易错句子Radioactives waste must be buried deep underground.
正确表达Radioactive waste must be buried deep underground.
radioactives 是可数名词的复数形式，复数名词不能直接放在另一个名词前作定语；表示“放射性的废物”要用形容词形式 radioactive 修饰 waste，即 radioactive waste。
放射性物质的处置
Local officials argued about the safe disposal of radioactives.
当地官员就放射性物质的安全处置问题争论不休。
放射性物质的储存
New rules govern the storage of radioactives near towns.
新规定对城镇附近放射性物质的储存作出规范。
放射性物质泄漏
Workers reported a leak of radioactives from the old plant.
工人们报告老厂发生了放射性物质泄漏。
接触处理放射性物质
Only trained staff may handle radioactives in this lab.
在这间实验室里，只有受过培训的人员才能处理放射性物质。
放射性物质的运输
The transport of radioactives is controlled by strict international rules.
放射性物质的运输受严格的国际规则管控。
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