名词
中文翻译：桥
同义词：
['span', 'cross', 'leap', 'traverse例句：1. The bridge spans the river and connects two towns.（这座桥横跨河流，连接两个城镇。）']
例句：
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1. The bridge spans the river and connects two towns.
这座桥横跨河流，连接两个城镇。
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2. The span of this bridge is 50 meters long.
这座桥的长度为50米。
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3.The span of time between two events is called the interval.
两个事件之间的时间间隔称为区间。