内容正文:
Unit9 lesson3-reading club
epidemic
词性:名词
中文意思:流行病,传染病的大规模爆发
英文释义:a widespread outbreak of a contagious disease in a community or population
词源:来自希腊语 epidemion(在土地上的出现),由 epi(上面)和 demos(人们)组成。
例句:The government is taking measures to control the epidemic.
固定搭配:epidemic disease(传染病),epidemic prevention(疫情预防)
近义词:outbreak, pandemic
virus
词性:名词
中文意思:病毒,一种微生物,能在宿主体内繁殖并感染其他细胞
英文释义:any of various small infectious agents that reproduce only inside the living cells of an organism and are capable of causing disease.
词源:来自拉丁语 virus,意为“毒液”或“毒素”。
例句:The flu virus can be transmitted through coughing and sneezing.
固定搭配:virus infection(病毒感染),virus vaccine(病毒疫苗)
近义词:pathogen, germ, microbe
variation
词性:名词
中文意思:变化,差异,变异
英文释义:a difference or deviation from what is normal or expected; a variant form.
词源:来自拉丁语 variare,意为“改变形状”。
例句:There is a great variation in temperature between day and night.
固定搭配:variation in price(价格波动),variation in color(颜色变化)
近义词:change, modification, deviation
factor
词性:名词
中文意思:因素,要素,因子
英文释义:something that contributes to a particular result or condition.
词源:来自拉丁语 factum,意为“做,制造”。
例句:Lack of exercise is a major factor in poor health.
固定搭配:factor analysis(因素分析),key factor(关键因素)
近义词:element, component, ingredient
bacteria
词性:名词
中文意思:细菌,一种单细胞生物,能在多种环境中生存和繁殖
英文释义:any of numerous unicellular prokaryotic microorganisms that have a simple cell structure without a nucleus.
词源:来自希腊语 bakterion,意为“小棒”,指其在显微镜下的形状。
例句:Bacteria can cause many different types of infections in humans.
固定搭配:bacterial infection(细菌感染),bacteria culture(细菌培养)
近义词:microbe, germ, pathogen
officially
词性:副词
中文意思:正式地,官方地
英文释义:in an official manner
词源:来自拉丁语 "officiō",意为“在办公室工作”
例句:The government has officially announced the new policy.
固定搭配:officially declare, officially approve, officially recognize
近义词:formally, authoritatively, legally
classify
词性:动词
中文意思:分类,归类
英文释义:to arrange or categorize according to shared characteristics
词源:来自拉丁语 "classificāre",意为“将事物分成类别”
例句:The library books are classified by su