How many lines — first of all, where has the melody gone — the theme?

有多少条旋律线，首先，这段旋律去了哪里？

youdao

So here is the first presentation of our melody.

先是这段旋律的第一次呈现。

youdao

So here is the first presentation of our melody.

先是这段旋律的第一次呈现。

youdao