英语语法分析

The department is reviewing its policy with regard to immunization.

该部门正在重新审查其有关免疫注射的政策。

《柯林斯英汉双解大词典》

Immunization coverage against fatal diseases has increased to 99% in some countries.

在一些国家致命疾病免疫注射的覆盖面已达到99%。

《牛津词典》

Routine childhood immunization will then sustain this achievement.

随后将通过常规儿童期免疫来维持这一成就。