vestigial male

例句：

1. 1. The vestigial wings of the butterfly are a reminder of its ancient origins.
   蝴蝶的残翼是它古老起源的提醒。
2. 2.The vestigial remnants of the old city still stand as a testament to its past glory.
   旧城的残垣断壁仍矗立着，见证了它的辉煌过去。
3. 3. The vestigial structure is a fascinating example of how evolution can lead to unexpected adaptations.
   这种残存的结构是进化导致出人意料的适应的一个引人入胜的例子。