We watched anxiously during her descent from the tree.我们焦急地看着她从树上爬下来。
The descent of the mountain took two hours.下山花了两个小时。
She is of German descent.她祖籍是德国。
He is of aristocratic descent.他出身贵族。

descent, decent
参见decent条。

［同义词］   decline, drop, fall, origin
［反义词］   ascent, climb, rise