vaccine ·noun
Definition: a substance that is given to people to stop them from getting a particular disease Level: C2
流感疫苗已经用完了。
Doctors have run out of the flu ___vaccine.
最近进行了一项实验来验证疫苗是否有效。
An experiment was recently conducted to verify if the ___vaccine works.
尽管该疫苗在临床试验中已显示出显著疗效,但其长期安全性仍是科学界密切关注的问题。
Although the ___vaccine has demonstrated remarkable efficacy in clinical trials, its long-term safety profile remains the subject of intense scientific scrutiny.