span

the act of sitting or standing astride

跨坐跨着坐或站的动作

straddle

a structure that allows people or vehicles to cross an obstacle such as a river or c or railway etc.

允许人或车辆通过障碍物的结构，如河流、运河或铁路等。

bridge

the distance or interval between two points

两点之间的距离或间隔

a unit of length based on the width of the expanded human hand (usually taken as 9 inches)

以伸出的手的宽度为基础的长度单位（通常取9英寸）

two items of the same kind

同类两件

couple

pair

twosome

twain

brace

yoke

couplet

distich

duo

duet

dyad

duad

the complete duration of something

某物的完整持续时间

the job was finished in the span of an hour

这项工作在一小时内完成了

to cover or extend over an area or time period

覆盖在一个区域或时间段内覆盖或延伸

Rivers traverse the valley floor", "The parking lot spans 3 acres

河流横穿谷底，“停车场占地3英亩

The novel spans three centuries

这部小说跨越三个世纪

cross

traverse

sweep