span

/spæn/

the complete duration of something

中文释义：持续时间；跨度

The average human attention span has decreased in the digital age.

在数字时代，人类的平均注意力持续时间有所下降。

The bridge has a span of over 500 meters between its two towers.

这座桥的两座塔之间跨度超过500米。