雅思词汇解析，释义到用法，清清楚楚
每一次的进步，都是来自点点滴滴的积累
今天我们来讲一些和疾病相关的词汇，并且一起看看他们在考试中的用法~
1. incubate /'ɪŋkjʊbeɪt/
a.使(病毒)潜伏；
e.g. The virus can incubate for up to ten days after the initial infection. 病毒在初次感染以后可以潜伏长达 10 天。
b.孵化;孵卵；
Condors incubate only one egg and raise one chick at a time. 
注：condor 美洲秃鹫
n. incubation 孵化
n. incubator 孵化器;(细菌)培养器
小作文流程图：The life of a salmon starts in the incubation period inside the eggs which is spawned in the freshwater.
注：spawn  (鱼、蛙等)产卵；
听力真题3-3-4：Then the farmers need special equipment such as incubators for the eggs.
2. respiratory 
adj. 呼吸的；
e.g. respiratory diseases/infections 呼吸道疾病/ 感染
e.g. Most people who get sick with COVID-19 will develop mild to moderate respiratory symptoms. 大多数感染COVID-19的人会出现轻度至中度呼吸道症状。
阅读真题 4-1-2：Those suffering from respiratory complaints represent 7% of their patients, and candida sufferers represent an equal percentage. 呼吸系统疾病患者和假丝酵母过敏者各占7%。
注：complaint （身体部位的）疼痛；病症
如：He is being treated for a stomach complaint. 胃病
3. contagious /kən'teɪdʒəs/
a.adj. 病接触传染的
阅读真题 15-1-1：At the same time, thousands of people across Europe were dying of the plague, a highly contagious and deadly disease. 与此同时，欧洲各地成千上万的人死于瘟疫，这是一种高度传染性和致命的疾病。
b.adj. (感情、态度等)感染性的，
e.g. His enthusiasm was contagious. 他的热情很有感染力
e.g. She has a contagious smile. 她的笑容很有感染力。
4. vaccine /'væksiːn/
n. 疫苗；
e.g. The vaccine is used to protect people against polio. 
注：polio 脊髓灰质炎，即小儿麻痹症
v. vaccinate
be vaccinated against: 给…接种疫苗防治
e.g. Those above 50 and people with chronic diseases will be vaccinated against Covid-19.
注：chronic disease 慢性病
e.g. Most side effects from vaccination are mild, such as soreness, swelling, or redness at the injection site.
注：side effect 副作用
mild 症状轻微的，不强烈的
听力真题9-4-1：If you need to be vaccinated before any trip abroad you won’t have to pay for this.
正确答案：E. vaccinations