Vaccination immunizes one against smallpox.

接种牛痘能使人免患天花。

A health worker immunizes an infant in Nepal.

医疗工作者在尼泊尔为婴儿注射预防针。

Be that as it may, the Supreme court's support for the California law, albeit by this slim margin, probably immunizes the law from future court challenges - at least for a long time to come.

不管怎么说，美国最高法院对加州这一法律的支持，虽说是以微弱多数通过，恐怕也会使该法律免受未来的司法挑战———至少是在相当长的一段时间内。