immunize|immunized|immunizing

疫苗可以保护儿童免受某些疾病的侵害。

Vaccines help to ___immunize children against certain diseases.

医生建议每年接种流感疫苗。

Doctors recommend getting ___immunized against flu every year.

兽医建议每年为宠物接种疫苗以预防常见疾病。

Vets recommend ___immunizing pets annually against common diseases.