这种狭的历史是社会学的根据。
发现那件东西的地方是在一个陡狭的斜坡上，那里从前也许是湖岸。
The site of the find is a sharp, narrow slope that may once have been on the shore of a lake.
鸢鹞鹰属于鹰科的各种食肉的鸟之一，有长的，经常为叉状的尾和长而狭的翼。
Any of various predatory birds of the hawk family accipitridae having a long often forked tail and long pointed wings.
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