至于

至于

"至于" means "as for" or "regarding."

In this sentence, '至于' is used to transition to a different topic of discussion or concern, focusing the listeners’ attention to what follows.

至于明天的计划，我们还需要再讨论。

As for tomorrow's plan, we still need to discuss further.

Here, '至于' is employed to express insignificance or a lower priority of the mentioned subject relative to the main topic.

至于天气怎么样，那并不重要。

As for the weather, it is not important.

The usage of '至于' in this sentence serves to introduce a subtopic or specific detail pertinent to the ongoing context.

至于她是否加入，我们仍在确认中。

As for whether she will join, we are still confirming.