头向上抬起，头顶与天花板保持平行，并将下颌稍稍向内收拢。

Stretch the top of your head toward the ceiling , and tuck your chin in slightly.

youdao

头向上抬起，头顶与天花板保持平行，并将下颌稍稍向内收拢。

Stretch the top of your head toward the ceiling , and tuck your chin in slightly.

youdao