Those are "angle", "center", and "radius".

它们是 “angle”、“center”和 “radius”。

youdao

Put your thumb inside your cheek at an angle toward the center of your ear.

把你的大拇指沿朝着耳朵中线的位置放进你的脸颊内。

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

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