供应啤酒时的瓶口 Mouth of a bottle when serving beer

这是一张非常近距离的照片，拍摄的是一个瓶子把啤酒倒进杯子里，杯子在顶部起泡时慢慢装满。

A very close up shot of the mouth of a bottle pouring beer into a glass, which fills slowly as it foams at the top.