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span

英[spæn]美[spæn]

n.[C]
1.（桥墩间的）墩距；孔；跨距；支点距
2.一段时间（尤指人的一生）；短促的时间
3.指距
4.全长
5.小范围；短距离
6.持续时间，时间阶段
v.[T]
1.（桥、拱等）横跨，跨越
2.（建筑工人等）在...上架桥（或建造拱门等）
3.以指距量；测量
4.用手环绕（或围绕）（腰、腕等）
5.持续；包括
6.【数】生成，张成
7.缚住，扎牢
8.拉紧，张紧
9.套上（马等）

同反义词

同：	[n.] bridge, couple, couplet, straddle [v.] cross, sweep, traverse

参考例句

Harry always makes sure he looks spick and span before he goes to meet anyone.
哈里出去会见任何人前总是确保自己看上去整洁干净。收藏
Over a short span of three years a surprising amount has been achieved.
"在短短三年时间里,已经取得了惊人的成绩。"收藏
The eighty-four years which this man lived span the interval between the Monarchy at its apogee and the revolution at its dawn
这位人物所生活的八十四个年头，经历了达到极点的专制时期和刚刚露出一线晨曦的革命年代。收藏
Approximately one-third of the span from the pier may be erected by the free cantilever method
大约三分之一的跨长可以由一个桥墩起靠自由悬臂的方法向前架设。收藏
In an infinite dimensional space there always exist two subspaces whose vector sum is different from their span
在一无限空间中恒存在两个子空间，其矢量和与其张成空间不同。收藏

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常用短语

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英英解释

名词解释：

the complete duration of something
- the job was finished in the span of an hour
the distance or interval between two points

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动词解释：

to cover or extend over an area or time period
- Rivers traverse the valley floor
- The parking lot spans 3 acres
- The novel spans three centuries
[同] cross, span, sweep, traverse

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