booster

Thanks. Today she’s due for the four-year-old booster, which covers diphtheria, tetanus, whooping cough, polio, and measles, mumps and rubella, in one injection.

谢谢。今天她该打四岁加强针了，涵盖白喉、破伤风、百日咳、脊髓灰质炎，以及麻疹、腮腺炎和风疹，全部打一针。