现在我想来换下一个话题，说说这些知识都是从哪学到的，不过我要先停下来回答你们，关于目前内容的问题。

I want to shift now and talk about where does all this knowledge come from but I'll stop and answer any questions about the material so far.

youdao

现在我想来换下一个话题，说说这些知识都是从哪学到的，不过我要先停下来回答你们，关于目前内容的问题。

I want to shift now and talk about where does all this knowledge come from but I'll stop and answer any questions about the material so far.

youdao