中文翻译
n. 降落, 家系, 侵袭, 血统
[医] 下降, 世代, 血统
英文解释
n. a movement downward
n. the act of changing your location in a downward direction
n. the kinship relation between an individual and the individual's progenitors
n. a downward slope or bend
词态变化
复数形式:descents