You may find a rotten apple in any race.

任何种族,都有害群之马.

Next one: rotten apple. So, what's a rotten apple?

下一个：‘坏家伙’。什么是坏家伙？

It is very true that a rotten apple spoils the barrel.

是真的,一个烂苹果,影响整篓的苹果.

There is always a rotten apple to spoil it for the best of us.

总有那么一个坏小子在损坏我们大家的利益.

We cannot use a rotten apple to generalize about the whole group.

我们不能用一个坏家伙,去概括全体.