The spelling hairbrained also has a long history, going back to the 1500s when hair was a variant spelling of hare.

而hairbrained这个拼法也有很长的历史，可以追溯到16世纪，那时候hair是hare的另一种拼法。

youdao

When bare of hair he strips the hare, Right there I cry, 'Forbear! '

当大熊差不多将野兔所有的毛发拔掉，我大叫：「自制啊！」

youdao

I cannot bear to see a bear bear down upon a hare. When bare of hair he strips the hare, Right there I cry, "Forbear! ""

我实在不忍心看着大熊一步一步向野兔逼近。当大熊差不多将野兔所有的毛发拔掉，我大叫：「自制啊！」

youdao