descent

释义

n. 降落, 家系, 侵袭, 血统\n[医] 下降, 世代, 血统 gradient descent 梯度下降 descent method n. 下降法 chinese descent 中国血统；炎黄子孙

例句

The authors show how this was triggered by his belief in the common descent of all humans.

作者表明，这张图是如何由他的信仰引发出来的，达尔文相信全人类属于共同的血统。

Passengers must fasten their seat belts prior to descent.

乘客在飞机降落之前必须系好安全带。