vaccine

英文解釋：

名詞 vaccine:

1. immunogen consisting of a suspension of weakened or dead pathogenic cells injected in order to stimulate the production of antibodies
   同義詞：vaccinum

例句：

1. A prophylactic agent, device, or measure, such as a vaccine or drug.
   預防劑預防性的物質、器具或措施，比如疫苗或藥物
2. The vaccine was used to protect the whole population against infection.
   這種疫苗用以為全體居民預防傳染病。
3. The search for a new vaccine took priority over all other medical research.
   在各種醫藥研究中，應首先解決尋找新疫苗的問題。
4. This vaccine will give you immunity for two years.
   接種這種疫苗可有兩年免疫力。