英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Virus - Wikipedia
    Several classes of antiviral drugs have been developed The English word "virus" comes from the Latin word vīrus, which refers to poison and other noxious liquids Vīrus comes from the same Indo-European root as Sanskrit वि॒ष (viṣa), and Ancient Greek ἰός (iós), which all mean 'poison'
  • Viruses: Definition, Types, Characteristics Facts
    Viruses are microscopic organisms that can infect hosts, like humans, plants or animals They’re a small piece of genetic information (DNA or RNA) inside of a protective shell (capsid) Some viruses also have an envelope Viruses can’t reproduce without a host Some common diseases caused by viruses include the flu, the common cold and COVID-19
  • What are Viruses?- A Complete Study Note and Guide
    Viruses are obligatory parasitic infectious biological particles possessing only one type of nucleic acid and requiring the host cell’s mechanism to replicate
  • What Is a Virus? Definition, Structure, and How Viruses Work
    Viruses have shaped the evolution of life for billions of years They have triggered devastating diseases and global pandemics, yet they have also contributed to genetic innovation and scientific breakthroughs
  • Viruses - National Geographic Society
    Viruses are tiny infectious agents that invade host cells and cause disease Although they are harmful, viruses also have interesting technological potential Viruses are microscopic biological agents that invade living hosts and infect their bodies by reproducing within their cell tissue
  • Virus | Definition, Structure, Facts | Britannica
    virus, infectious agent of small size and simple composition that can multiply only in living cells of animals, plants, or bacteria The name is from a Latin word meaning “slimy liquid” or “poison ”
  • What are Viruses? - Microbiology Society
    Viruses are the smallest of all the microbes They are said to be so small that 500 million rhinoviruses (which cause the common cold) could fit onto the head of a pin Viruses vary in complexity, size and structure and can have different effects in one organism to another
  • Virus - National Human Genome Research Institute
    A virus is an infectious microbe consisting of a segment of nucleic acid (either DNA or RNA) surrounded by a protein coat A virus cannot replicate alone; instead, it must infect cells and use components of the host cell to make copies of itself Often, a virus ends up killing the host cell in the process, causing damage to the host organism
  • Overview of Viruses - Infectious Disease - MSD Manuals
    Viruses are among the smallest microbes, typically ranging from 0 02 to 0 3 micrometer in diameter, although several very large viruses up to 1 micrometer (eg, megavirus, pandoravirus) have recently been discovered
  • Respiratory viruses fact sheet - NSW Health
    Respiratory viruses cause illnesses that affect the nose, throat and breathing passages including the lungs These viruses commonly result in mild cold or flu like symptoms





中文字典-英文字典  2005-2009