You see there's a mark there, here. That's how much I cover the flute.

你看到这上面的痕迹，就是我的嘴唇覆盖住长笛口的范围。

youdao

You see there's a mark there, here. That's how much I cover the flute.

你看到这上面的痕迹，就是我的嘴唇覆盖住长笛口的范围。

youdao