无论说或唱都用发源地的方言。

Both the recited and sung sections use the dialect of the region. Of provenance.

youdao

她从来没有说过一个字，或唱。

She never said or sang a word.

youdao

我就省去我的意大利语或唱给你们听了。

I won't sing for you or give you my Italian.

youdao

And Milton, or the Elder Brother here, is clearly thinking of Revelation 14, in which it's only the pure spirit or the virgin -- that can even begin to hear the new song being sung before the throne of God.

弥尔顿，或者大哥，显然说的是《启示录》第14章的内容，那里说只有纯净的精神或有童贞,才可以听到在上帝面前唱的新歌。

耶鲁公开课 - 弥尔顿课程节选