Shift the position to grasp at an Angle from the jaw and pull forward and up; hold. Shift a bit toward the center below your lower lip and repeat.

改变位置，从下巴的一个角度抓起来，然后往前往上拉伸，保持住，往中间再去一点，要比你下唇低，再重复。

youdao

Shift the position to grasp at an Angle from the jaw and pull forward and up; hold. Shift a bit toward the center below your lower lip and repeat.

改变位置，从下巴的一个角度抓起来，然后往前往上拉伸，保持住，往中间再去一点，要比你下唇低，再重复。

youdao