n. immunogen consisting of a suspension of weakened or dead pathogenic cells injected in order to stimulate the production of antibodies
n. 牛痘苗, 疫苗
a. 疫苗的, 牛痘的
1. The vaccine helps protect us from serious diseases.
疫苗可以帮助我们预防严重疾病。
2. Many people are getting the COVID-19 vaccine to stay safe.
很多人正在接种新冠病毒疫苗以保持安全。
3. It is important to get vaccinated to build immunity.
接种疫苗以建立免疫力是很重要的。