A " bad apple" is not a nice person.

“坏苹果”不是好人。

But from time to time, you do find a bad apple.

但有时，你确实会发现一个坏苹果。

So, we're not talking about a bad apple; we're talking about a really nice, tasty apple.

所以，我们不是在谈论一个坏苹果；我们谈论的是一种非常美味可口的苹果。

This reaction isn't necessarily enough to help someone who already taken a bite of a bad apple, but it may protect the people they're with.

这种反应不一定足以帮助已经咬了一口坏苹果的人，但它可能会保护和他们在一起的人。