Flashboard

[flæʃbɒ:d]

解釋/意思:

(noun.) boarding place along the top of a dam to increase its height.

編輯:弗吉尼亚--From WordNet

解釋/意思:

(n.) A board placed temporarily upon a milldam, to raise the water in the pond above its usual level; a flushboard.

編輯:莉莉