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：


请选择你想看的字典辞典：
单词字典翻译
pandemia查看　pandemia　在百度字典中的解释百度英翻中〔查看〕
pandemia查看　pandemia　在Google字典中的解释Google英翻中〔查看〕
pandemia查看　pandemia　在Yahoo字典中的解释Yahoo英翻中〔查看〕

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:


  • COVID-19 pandemic - Wikipedia
    In epidemiology, a pandemic is defined as "an epidemic occurring over a very wide area, crossing international boundaries, and usually affecting a large number of people" During the COVID-19 pandemic, as with other pandemics, the meaning of this term has been challenged [17] The end of a pandemic or other epidemic only rarely involves the total disappearance of a disease, and historically
  • Pandemic | Description, History, Preparedness, Facts | Britannica
    A pandemic is an outbreak of infectious disease that occurs over a wide geographical area and that is of high prevalence, generally affecting a significant proportion of the world’s population over the course of several months
  • What Is a Pandemic? | Infectious Diseases - JAMA Network
    The terms endemic, outbreak, epidemic, and pandemic are often used to describe infections, although conditions such as hypertension, cancer, violence, or even positive, beneficial behaviors can also be described the same way These categories are primarily based on how many cases of a condition there are compared with the expected number of cases over a given time and how far the cases have
  • What Is a Pandemic? - ScienceAlert
    When does an epidemic officially become a pandemic? In 2009, a new kind of influenza A virus known as H1N1 emerged in an outbreak in the United States It quickly spread, and was defined by the WHO as a pandemic based on a formal process that took into account the precise nature of the countries where an infection was diagnosed
  • Coronavirus disease (COVID-19) pandemic
    The coronavirus disease 2019 (COVID-19) pandemic is a global outbreak of coronavirus – an infectious disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Cases of novel coronavirus (nCoV) were first detected in China in December 2019, with the virus spreading rapidly to other countries across the world This led WHO to declare a Public Health Emergency of
  • The Covid-19 Pandemic - The New York Times
    Everything you need to know about coronavirus, including the latest news, how it is impacting our lives, and how to prepare and protect yourself
  • Pandemics | Ready. gov
    Prepare for Pandemic Stay Safe During Stay Safe After Associated Content A pandemic is a disease outbreak that spans several countries and affects a large number of people Pandemics are most often caused by viruses which can easily spread from person to person
  • COVID-19 Pandemic - Our World in Data
    The COVID-19 pandemic has had a profound impact on the world Explore global data and research to understand its impact, spread, and global response
  • Pandemic - an overview | ScienceDirect Topics
    1 Introduction The definition of “pandemic” has been fluid throughout history According to the World Health Organization (WHO), “a pandemic is the worldwide spread of new disease” (Pitlik, 2020) National Institutes of Health (NIH) proposed eight characteristics of pandemics: novelty, minimal population immunity, explosiveness, fast disease movement, wide geographic extension
  • COVID-19 pandemic | AP News
    Stay up to date on the latest COVID-19 pandemic news coverage from AP News





中文字典-英文字典  2005-2009