我想就你之前说过的事情问你一些事。

I'd like to ask you something ___in ___relation ___to what you said earlier.

他关于新政策的评论非常有见地。

His comments ___in ___relation ___to the new policy were very insightful.

这份报告提供了有关气候变化影响的重要数据。

The report provides important data ___in ___relation ___to climate change effects.