bridgeboard的翻译，读音
英/'bridʒbɒ:d/
释义：
n. 木楼梯之侧板
n. A notched board to which the treads and risers of the
steps of wooden stairs are fastened.
n. A board or plank used as a bridge.
n. A notched board to which the treads and risers of the
steps of wooden stairs are fastened.
n. A board or plank used as a bridge.