descent
[di'sent]
n.下降, 下坡, 家世, 血统, 侵袭, 衰落, 继承
例句与用法：
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。
The descent down the mountain took nearly two hours.
下山差不多花了两个小时。
There was a descent of temperature after rain.
雨后气温下降了。
详细释义：
n.
1. 下降; 下倾[U][C]
The spectators watched the descent of the balloon.
观看的人瞧着气球降落。
2. 下坡[C]
a steep descent
陡峭的坡道
3. 世系, 血统[U]
Many Americans are of English descent.
许多美国人有英国血统。
4. 遗传; 派生[U]
5. 衰落; 堕落[U][S1]
his descent into a life of crime
他沦落到靠犯罪为生
6. 屈尊; 降格[U][(+to)]
7. 袭击; 入侵[C][(+on/upon)]
The Danes made numerous descents 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。
8. 【律】(遗产的)继承[U]