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1·The Rialto Bridge is one of the four bridges spanning the Grand Canal.

里亚托桥是横跨大运河的四座桥梁之一。

2·As a method of spanning space, the arch can support greater weight than a horizontal beam.

作为一种跨越空间的方法，拱能够承受比水平梁更大的重量。

3·Although the study is based on plant life in Scotland, our models apply across regions spanning hundreds of thousands of square kilometers.

虽然这项研究是以苏格兰植物生存为基础，但是我们的模式适用于跨越数十万平方公里的地区。

4·Family photos spanning five generations were stolen.

一家五代人的照片失窃了。《牛津词典》

5·Harrison had a glorious career spanning more than six decades.

哈里森有过一段长达六十余年的辉煌的职业生涯。《柯林斯英汉双解大词典》

6·Next came the Erie Canal, an enormous project in its day, spanning about 350 miles.

接下来是伊利运河，这是当时的一项巨大工程，全长约350英里。

7·This was possible because of the Navy's formerly top-secret system of underwater listening devices spanning the oceans.

这是可能的，因为海军曾使用的水下监听设备的最高机密系统覆盖多个大洋。

8·It is the brightest star at the left of this well-composed starry mosaic spanning about 23 degrees across the northern sky asterism dubbed the Little Dipper.

它是这张精心构图的星图左侧最亮的恒星，横跨北部天空偏星约23度，被称为小北斗星。

9·then bridges find a spanning tree.

最后由网桥支撑起的一棵生成树

10·It is very long, spanning ten nights in ten episodes.

这部剧非常长，全本十集要演十个晚上。

(1)spanning tree生成树；最大树生成树；跨越树

(1)minimum spanning tree[计]最小生成树