span

1. N-COUNT A span is the period of time between two dates or events during which something exists, functions, or happens. (兩時間點之間的) 時間段

The batteries had a life span of six hours. 電池的使用壽命是6小時。

2. N-COUNT Your concentration span or your attention span is the length of time you are able to concentrate on something or be interested in it. (注意力的) 持續時間

His ability to absorb information was astonishing, but his concentration span was short. 他吸收信息的能力讓人驚訝，但他的注意力持續時間很短。

3. V-T If something spans a long period of time, it lasts throughout that period of time or relates to that whole period of time. 持續[no passive]

His professional career spanned 16 years. 他的職業生涯持續了16年。

4. V-T If something spans a range of things, all those things are included in it. 包括[no passive]

Bernstein's compositions spanned all aspects of music, from symphonies to musicals. 伯恩斯坦創作的樂曲包括了音樂的所有方麪，從交響樂到音樂劇。

5. N-COUNT The span of something that extends or is spread out sideways is the total width of it from one end to the other. 寬距[usu with supp]

It is a very pretty butterfly, with a 2 inch wing span. 它是一衹非常漂亮的蝴蝶，翅膀張開有2英寸寬。

6. N a team of horses or oxen, esp two matched animals 馬隊或牛隊

7. V-T A bridge or other structure that spans something such as a river or a valley stretches right across it. 橫跨

Travellers get from one side to the other by walking across a footbridge that spans a little stream. 旅遊者通過一座橫跨小谿的人行橋從一邊走到另一邊。