span
名词 span:
the complete duration of something
the distance or interval between two points
two items of the same kind
同义词:couple, pair, twosome, twain, brace, yoke, couplet, distich, duo, duet, dyad, duad
a unit of length based on the width of the expanded human hand (usually taken as 9 inches)
a structure that allows people or vehicles to cross an obstacle such as a river or canal or railway etc.
同义词:bridge
the act of sitting or standing astride
同义词:straddle
动词 span:
to cover or extend over an area or time period