n.large long-legged African bird of prey that feeds on reptiles
同义词：Sagittarius serpentarius
英汉双解大词典
secretary bird
1.
N（名词）
a large African long-legged diurnal bird of prey, Sagittarius serpentarius, having a crest and tail of long feathers and feeding chiefly on snakes: family Sagittariidae, order Falconiformes (hawks, falcons, etc) 文书鸟