I would clearly expect him to narrate

我还可能会期待有些
the destruction of Jerusalem and the destruction of the temple,

耶路撒冷和神庙毁灭的描写
as Luke does.

像路加福音一样
When you read Luke,

当你读路加福音的时候
who used Mark as one of his sources,

路加福音参考了马可福音
you'll notice that the writer of the Gospel of Luke

你会注意到路加福音的作者
uses this passage out of Mark and he edits it,

撷取了这段并作了修改
to add in the destruction of the temple before Jesus comes back.

在耶稣回来之前加上了神庙的毁灭
The reason?

为什么
Because the writer of Luke knew that the temple had been destroyed.

因为路加福音的作者知道神庙被毁坏
Why doesn't Mark tell about it?

为什么马可不提这个
Because he doesn't know yet that it's been destroyed.

因为他那时还不知道