英语语法分析

In the 19th century, inbreeding nearly led to the extinction of the royal family.

19世纪，近亲婚配几乎导致了皇室宗族的灭绝。

《柯林斯英汉双解大词典》

The same effects of inbreeding may have occurred in controlled cattle populations, with some additional, and perhaps unrecognized, advantages.

近亲繁殖在有限的一部分牛群中可能会有同样的效果，同时它还有其他一些也许还未被认识到的优点。

But there is an equally important downside: inbreeding.

但是同样重要的，其不利面：近亲繁殖。