您要查找的是不是：
- A main feature of computer virus. 计算机病毒的一种主要特性。
- extraneous virus 外源病毒
- The flu virus infected almost the entire class. 全班几乎人人都染上了流行性感冒病毒。
- Reductant from an extraneous source is introduced. 外来的还原剂被引进来。
- Even his family had become extraneous to him. 甚至家庭对他也无足轻重。
- To remove extraneous matter from(the teeth). 剔除从（牙上）剔除外来物质
- Scientists have isolated the virus causing the epidemic. 科学家们已分离出引起这种流行病的病毒。
- We shall ignore factors extraneous to the problem. 我们应该撇开与此问题无直接联系的因素。
- The label has no extraneous blotches. 标签没有任何污点。
- Not mingled or diluted with extraneous matter;pure. 未掺杂的，无杂质的，纯净的
- The child may be distracted by extraneous sounds. 孩子可能会被不相干的声音干扰。
- Extraneous null statements are not always harmless. 无关的空语句并非总是无害的。
- The only extraneous item I may carry is a gift. 我带的唯一与旅行无关的物件是礼物。
- A protease is key to the replication of the virus. 蛋白酶是阻止非典病毒变异的关键物质。
- Extraneous material added to written work, such as a speech, to make it longer. 冗词赘句加在书面作品上的一些额外的材料，如一篇讲话，为使之更长一些
- His account of the fire accident includes a lot of extraneous details. 他对失火事件的描述含有大量离题的细节。
- Rheumtoid arthritis is also linked with the virus. 风湿性关节炎也和这种病毒有关。
- He might have taken it to combat a summer virus. 他可能服用了此物来抵抗一种夏季的病毒。
- Another virus survey was carried out. 对别的病毒进行了观察。
- The virus latches onto the red blood cells. 这种病毒附着在红细胞上。
