详细解释:n. 快速船
英语解释：
名词 greyhound:
a tall slender dog of an ancient breed noted for swiftness and keen sight; used as a racing dog例句：
Any of a breed of swift, short-haired dog developed in England for racing, resembling the greyhound but smaller.小灵狗一种敏捷、短毛的狗，培育于英国为比赛而用，与灵相似但体型要小一些