1. Tests showed increased levels of toxin in shellfish. 测试表明贝类中的毒素级别上升了。
2. They were close to weaponizing ricin - a lethal plant toxin. 他们快把蓖麻毒素——一种致命的植物毒素——研发成武器了。
3. Other mammals, such as the platypus and some shrews, are venomous, meaning they produce a toxin internally . 其他哺乳动物如鸭嘴兽和一些鼩鼱是有毒的,这意味着它们会在体内产生一种毒素。
4. Postmortem analysis showed the presence of an as yet unidentified virus, as well as evidence of a know bacterial toxin. 尸检分析显示出存在一种未知的病毒,以及一种已知的有毒细菌的证据。
5. Postmortem analysis showed the presence of an as yet unidentified virus, as well as evidence of a known bacterial toxin. 尸检分析显示存在一种尚未识别的病毒,以及一种已知细菌毒素的证据。