Articulatio sacrococcygea

例句：

1. 1. The couple had an unusual way of having sex, which was considered taboo by many.
   这对夫妇有一种特殊的性交方式，被许多人视为禁忌。
2. 2. The doctor advised the patient to avoid such practices for his health.
   医生建议病人为了他的健康避免这种实践。
3. 3. Many people are uncomfortable with this kind of sexual activity, and it's not recommended for public displays.
   很多人对这种性行为感到不舒服，不建议在公共场合展示。