protect against

基本解释

So why not have the underlying system automatically protect against these problems?
那么为何不让底层系统自动保护程序避免这些问题呢？
Cook with red onions, not yellow. Red onions contain far more quercetin, an antioxidant that is thought to protect against cataracts.
食用红色的洋葱，而不是黄色的。因为红洋葱含有更多的可预防白内障的一种抗氧化物
lailook.net
The digest provides some security for external policy references, though it doesn't protect against modifications to the reference itself.
这个提取算法为外部策略引用提供了一些安全性保证，但是它不能保护引用本身的修改。

This has led to greater use of monovalent vaccines to protect against either type one or type three polio.
So there's plenty of room to still innovate in that way, to develop new methods that could protect against diseases like AIDS or diseases like malaria that we don't have problems with here but they do in many parts of the world, and so we'll talk about that.
我们还有很长的路要走,研究一些新方法以预防艾滋病这样的疾病,或者像疟疾这样尽管在我国没有威胁,但在世界很多地方还很严重的疾病,我们也会讲到这些
耶鲁公开课 - 生物医学工程探索课程节选
But because of the similarity of the viruses, the immune response that people developed would also protect them against natural infections with variola.
因为这两种病毒很相像,人体的免疫应答也能保护自己,免受天花的感染
耶鲁公开课 - 生物医学工程探索课程节选

Since October, some steps have been taken to protect against a repeat of this threat.
FORBES: Air Cargo Security: Time For The World To Take New Measures