n.时期；跨度；间距
vt.延续；横跨；贯穿；遍及；弥补
动词spin的过去式形式.
Modern medicine has increased man's life span. 现代医学延长了人的寿命。
He has settled here for a long span of time. 他已经在这儿定居很长一段时间了。
The arch has a span of 60 meters. 拱门的跨度为60米。
The clear span of a bridge is the gap from the near edge of the next. 桥梁的净跨，是自一个桥墩的近侧边到相邻桥墩近侧边之间的间距。
用作及物动词 (vt.)The shipwrecks span nearly a century. 这些船只残骸已有近百年历史。
Little bridges span the canals. 小型的桥梁横跨在运河之上。
The gloom spans the whole novel. 阴郁的气氛贯穿着整部小说。
His knowledge spans many different areas. 他的知识遍及许多领域。
Imagination will span the gaps in our knowledge. 想像力会弥补我们知识的不足。
n.西班牙人
n.扳手
