你儿子应当注射预防天花的预防针。

Your son ought to be inoculated against smallpox.

youdao

你注射过这种疾病的预防针了吗？

Have you had an injection against the disease?

youdao

疾病未治愈期间，最好不要注射乙脑预防针。

Disease is not cured during the period, it is best not to je vaccine injection.

youdao

疾病未治愈期间，最好不要注射乙脑预防针。

Disease is not cured during the period, it is best not to je vaccine injection.

youdao