descent

descent [diˈsent] n.

1. ■ 降, (落)下; 倾斜, 下坡; 下降的方法或工具

2. ■ 家世, 血统, 门第; 遗传, 世袭

3. ■ 袭击

4. ■ 降格, 屈尊; 堕落

a gradual descent from land to sea 由陆地逐渐倾斜至海

The descent of the mountain took nearly two hours. 下山差不多花了两个小时。

Many Americans are of English descent. 许多美国人的祖籍是英国。

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习惯用语

be of good descent

1. ■ 出身好

make a descent upon

1. ■ 侵入, 袭击

descent of man

1. ■ 人类由来

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特殊用法

gradient descent

1. ■ 梯度下降

rate descent

1. ■ 【航空】等速下降