1. We watched anxiously during her descent from the tree. 我们焦急地看着她从树上爬下来。
2. On our theory, unity of type is explained by unity of descent. 依照我们的学说，体型的一致是由于祖先系谱的一致。
3. It records "air data" such as the airplane's speed, heading, altitude, rate of climb or descent, accelerations, and decelerations. 它记录的飞行数据包括飞机的速度、航向、高度、爬升或下降速度、加速以及减速等。
英英解释
n.
1. a movement downward
2. properties attributable to your ancestry
3. the act of changing your location in a downward direction
4. the kinship relation between an individual and the individual's progenitors
5. a downward slope or bend
6. the descendants of one individual
