| 单词 | 定指 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔black box〕A device or theoretical construct with known or specified performance characteristics but unknown or unspecified constituents and means of operation.黑箱：一种仪器或理论学说，有已知或特定的性能特征但未知或不确定指出的构成成分或操作方法美国传统〔cochineal〕A red dye made of the dried and pulverized bodies of female cochineal insects. It is used as a biological stain and as an indicator in acid-base titrations.胭脂红：由雌胭脂虫虫体干燥并研成粉末制成的一种红色染料。用作生物着色剂和酸基滴定指示剂美国传统〔reasonable〕He went free because the jury decided there was a reasonable doubt about his guilt.他没有被判罪，因为陪审团认定指控他犯罪的证据不足。剑桥高阶 |
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