descent 和 descend用法上有什么区别? 举2个例句。

descent (noun)the state or fact of being related to a particular person or group of people who lived in the past:

She's a woman of mixed/French descent.

They trace their line of descent back to a French duke.

He claims direct descent from Mohammed.

descend (verb)

[I or T] formal to go or come down:

The path descended steeply into the valley.

Jane descended the stairs.

[I] literary If darkness or night descends, it becomes dark and day changes to night.