| 释义 |
vaccine
['væk.si:n] noun countable or uncountable
■a substance which contains a form that is not harmful of a virus or bacterium (= extremely small organism) and which is given to a person or animal to prevent them from getting the disease which the virus or bacterium causes 疫苗•This vaccine protects against some kinds of the bacteria.这种疫苗能抵抗这些细菌中的某几种。 |