He was an O'Conor and a direct descendant of the last High King of Ireland.
他属于奥康纳家族，是爱尔兰最后一位君王的嫡系后裔。
《牛津词典》
2
These adaptations served their descendant well as they invaded land.
这些适应机制在它们的后代进化成陆生生物时起了很好的协助作用。
3
This method tells you all information you need to know: whether one node is descendant of an ancestor of the other, whether it is before or after, and so on.