span
美[spæn] vt.缚住或扎牢；跨越时间或空间；以掌测量；以手围绕测量类似测量
网络跨度；常用内联容器；跨距；交换端口分析器
1 . The batteries had a life span of six hours.
这些电池的寿命为6小时。
来自柯林斯例句
2 . They have extended the potential life span of humanity everywhere.
世界各地人类的预期寿命均有所延长。
来自柯林斯例句
3 . It is a very pretty butterfly, with a 2 inch wing span .
这是一只非常美丽的蝴蝶，翼展2英寸。
来自柯林斯例句
4 . The apartment was spick and span .
公寓非常整洁。
来自柯林斯例句
5 . I worked with him over a span of six years.
我和他共事达六年之久。
来自《权威词典》
1.the complete duration of something;
the job was finished in the span of an hour
2.the distance or interval between two points
3.two items of the same kind
4.a unit of length based on the width of the expanded human hand (usually taken as 9 inches)
5.a structure that allows people or vehicles to cross an obstacle such as a river or canal or railway etc.
6.the act of sitting or standing astride
1.to cover or extend over an area or time period;
Rivers traverse the valley floor, The parking lot spans 3 acres