She had a dimple which appeared when she smiled.

她一笑就现出酒窝。

《牛津词典》

Blind love mistakes a harelip for a dimple.

盲目的爱情，使人把兔唇误当做酒涡。

youdao

The deep cleft. in his cheek he refused to call a dimple.

脸颊上露出他拒绝称作酒窝的深纹。

youdao

If you look at it long enough, it is a word that opens and spreads out, makes a circle of a far horizon, a word on which rain can fall and dimple or sweep across in lashing gusts and leave unperturbed, a word that is calm enough to look at, almost lulling, but also hints at holding unreckonable power."

VOA: standard.2010.08.04

And this dimple is later forming a vesicle, a round ball, that goes on and forms the ear.

随后形成一个圆球状的泡囊，直至发育成耳朵。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

And he has, although this may be an illusion produced by the graininess of the image, a dimple in his chin.

NEWYORKER: Labyrinth

But a voter who left a dimple only in the presidential race may have been reluctant to vote in that one race.

CNN: The Legal Challenges

For the first approach, he shapes a wettened cone of clay on a fast-spinning wheel, gradually turning a small dimple in the top into a bowl shape, which he smooths with a deerskin cloth and releases from its base with one quick draw of a taut wire.

BBC: The art of Japan