| 单词 | 放射量极小 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔infinitesimal〕The amounts of radioactivity present were infinitesimal.存在的放射量极小。剑桥高阶The amounts of radioactivity were infinitesimal and seemed to present no danger.放射量极小，好像不会有什么危险。剑桥国际 |
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