descended

a. 为...后裔的,出身于...的

Armed thieves descended on the helpless travelers.

一群武装盗贼袭击了无依无靠的旅客。

The theory that all living organisms are descended from a single cell or organism.

一元发生说认为所有生物都是由一个单细胞或有机体发展而来的理论