philtrum ridge

例句：

1. 1. The delicate philtrum ridge on her nose was a testament to her youthful beauty.
   她鼻子上那细微的褶皱证明了她的年轻美貌。
2. 2. The doctor carefully examined the philtrum ridge and noted that it was not indicative of any serious injury.
   医生仔细检查了鼻梁上的褶皱，并注意到它没有表明有任何严重的伤害。
3. 3. As she smiled, the philtrum ridges on her lips seemed to glow with a secretive allure.
   当她微笑时，嘴唇上的褶皱似乎闪烁着一种神秘的魅力。