va
ccine
复数形式
vaccines
1
疫苗
a substance, often administered through needle injections, that stimulates the body's immune response against harmful diseases
A vaccine is a substance given to stimulate the body's immune system to protect against a particular disease. It typically has a small, weakened, or a non-active part of the virus or bacteria that causes the disease. When a person receives a vaccine, their immune system recognizes the foreign substance as a threat and produces antibodies to fight it. This process prepares the immune system to respond quickly if the person is exposed to the disease-causing organism in the future, preventing illness or reducing its intensity.
- 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。
- Health officials recommended getting a COVID-19 vaccine to curb the spread of the virus.
卫生官员建议接种COVID-19疫苗以遏制病毒的传播。
- The doctor explained the importance of receiving a tetanus vaccine after a deep cut.
医生解释了在深切口后接受破伤风疫苗的重要性。
- The annual flu vaccine is recommended for vulnerable populations such as the elderly and young children.
年度流感疫苗被推荐给弱势群体，如老年人和幼儿。
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