descent /diˈsent/ n.［c］ & ［u］ 1.［c］下降，下倾: a descent of temperature after the rain 雨后温度下降 ［考句］ This is a long descent- roughly 13 miles down a beautiful valley to the little church below.下山的路很长，沿着漂亮的山谷差不多13英里的路程到了山脚下的小教堂。 2.［u］血统，世系: a woman of Swedish descent 一位瑞典血统的女人