1. The doctor recommended that we immunise our children against measles.
医生建议我们给孩子注射麻疹疫苗，提高其免疫力。
2. It is important to immunise yourself against common illnesses before traveling to certain countries.
在前往某些国家旅行之前，给自己接种常见疾病的疫苗非常重要。