在给他们一行行的讲解儿歌之前，我先教会他们一些新单词。

I taught them the new words first, before teaching the chant line by line.

youdao

在给他们一行行的讲解儿歌之前，我先教会他们一些新单词。

I taught them the new words first, before teaching the chant line by line.

youdao