Vaccine
01
疫苗
a substance, often administered through needle injections, that stimulates the body's immune response against harmful diseases
例子
The new vaccine was developed to protect against the flu virus.
新疫苗的研发是为了预防流感病毒。
Childhood vaccines have significantly reduced the incidence of once-common diseases.
儿童疫苗显著降低了曾经常见疾病的发生率。
