descent

复数：descents

1. [C][U]下降,降下; 沦落 the process of going down
2. [C]下坡 a way down; downward way
3. [U]血统,出身,门第 family origins of the stated type

• claim descent声称是…的后代
• make descent使…下降

• actual descent真正的后代
• foreign descent外国血统
• good descent出身贵族
• vertical descent垂直下降

gradient descent梯度下降

descent method n. 下降法

chinese descent中国血统；炎黄子孙

steepest descent method最速下降法；最陡下降法

1. There was a descent of temperature after rain.
   雨后气温下降了。
2. The trail zigzagged down the abrupt descent of the canyon.
   这条小路弯弯曲曲的顺着峡谷那陡削的下坡蜿蜒而下。
3. He traces his descent back to an old norman family.
   他追踪自己的世系上溯至一个古老的诺曼家族。
4. Many Americans are of English descent.
   许多美国人的祖籍是英国。
5. The Danes make numerous descent upon the english coast during the 10th century
   丹麦人在十世纪曾对英国海岸发动过无数次袭击
6. His descent into a life of crime made his mother very unhappy.
   他堕落到靠犯罪过活,这使他的母亲非常难过。
7. Real estate is generally acquired by purchase, by descent and devise, or by gift.
   不动产一般通过购买，遗产继承，遗赠和馈赠等方式获得。