单词 jackyard 释义 jackyard Naut.|dkjd|[See Jack n.1 34 b.]A spar used in fore and aft rigged craft, chiefly yachts, to spread the foot of a large gaff-topsail out beyond the peak. Also attrib.1873‘Vanderdecken’ Yachts & Yachting 186, I have never seen...