1. The concept of hymen as a marker of virginity is both outdated and scientifically inaccurate.
处女膜作为判断童贞的标志观念既过时又科学不准确。
2. The study of hymen morphology in different species of plants reveals interesting variations in structure and function.
研究不同种植物的边膜形态揭示了结构和功能上的有趣变异。