Question

span n.跨度,跨距,范围 v.横越 Span comes from the Old English spann, the width of the stretched-out hand, measured from thumb to little finger. It came to refer to various other measurements, such as the distance across an arch. The first reference to a length of time came in the late 16th century, and the phrase "attention span" first appeared in 1922 (as "span of attention"). ★★☆☆☆ 2007.1

Accepted Answer

[spæn] Any distance between two things is called a span. These end points can be physical, like the span of a rope between two trees, or they can be more abstract, such as the span of time between five and six o'clock. With the first subject, after about 20 hours of training, his digit span had risen from 7 to 20. 1[N-COUNT 可数名词]间隔；期间 A span is the period of time between two dates or events during which something exists, functions, or happens.   [usu supp N]The batteries had a life span of six hours...这些电池的寿命为 6 小时。Gradually the time span between sessions will increase.会议之间的间隔将逐渐延长。2[N-COUNT 可数名词](注意力的)持续时间 Your concentration span or your attention span is the length of time you are able to concentrate on something or be interested in it.   [usu supp N]His ability to absorb information was astonishing, but his concentration span was short...他吸收信息的能力令人吃惊，但是他的注意力持续时间很短。Young children have a limited attention span and can't concentrate on one activity for very long.小孩子的注意力持续时间十分有限，不能长时间地专注于一个活动。3[VERB 动词]持续；跨越；贯穿 If something spans a long period of time, it lasts throughout that period of time or relates to that whole period of time.   [V n]  [no passive]His professional career spanned 16 years...他的职业生涯持续了 16 年。The film, spanning almost a quarter-century, tells the story of Henry Hill...这部时间跨度将近四分之一世纪的影片讲述的是亨利·希尔的故事。Lining a corridor is a wall of photographs spanning his rugby days.走廊的一面墙上贴满了他橄榄球生涯里各个时期的照片。4[VERB 动词]包括；遍及 If something spans a range of things, all those things are included in it.   [V n]  [no passive]Bernstein's compositions spanned all aspects of music, from symphonies to musicals.伯恩斯坦创作的乐曲涉及了从交响乐到音乐剧等音乐的各个方面。...a remarkable man whose interests spanned almost every aspect of nature.一个兴趣广泛、几乎涉猎了自然学科所有领域的杰出男性5[N-COUNT 可数名词]宽度；宽幅 The span of something that extends or is spread out sideways is the total width of it from one end to the other.   [usu with supp]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。It may be that you are unaware of where your hip joint is； it is not at the waist but a good hand span below it.这也许是因为你并不晓得髋关节的位置，它不在腰部，而是位于腰部以下一手拃宽处。6[VERB 动词](桥等建筑物)横跨，跨越 A bridge or other structure that spans something such as a river or a valley stretches right across it.   [V n]Travellers get from one side to the other by walking across a footbridge that spans a little stream.游客通过一座横跨小溪的步行桥从一边来到另一边。...the humped iron bridge spanning the railway...横越铁路的铁拱桥Architects tell their clients that floors can span 100 metres without any visible means of support.建筑师告诉他们的客户，在没有任何有形支撑物的情况下，楼板可以延伸 100 米。7See also:spick and span；

英语单词	span
英美音标	[spæn]
中文释义	n.跨度,跨距,范围 v.横越
vocab简明	Any distance between two things is called a span. These end points can be physical, like the span of a rope between two trees, or they can be more abstract, such as the span of time between five and six o'clock.
vocab扩展	Span comes from the Old English spann, the width of the stretched-out hand, measured from thumb to little finger. It came to refer to various other measurements, such as the distance across an arch. The first reference to a length of time came in the late 16th century, and the phrase "attention span" first appeared in 1922 (as "span of attention").
真题原句	With the first subject, after about 20 hours of training, his digit span had risen from 7 to 20.
柯林斯星级	★★☆☆☆
柯林斯解释	1 [N-COUNT 可数名词]间隔；期间 A span is the period of time between two dates or events during which something exists, functions, or happens. [usu supp N] The batteries had a life span of six hours... 这些电池的寿命为 6 小时。 Gradually the time span between sessions will increase. 会议之间的间隔将逐渐延长。 2 [N-COUNT 可数名词](注意力的)持续时间 Your concentration span or your attention span is the length of time you are able to concentrate on something or be interested in it. [usu supp N] His ability to absorb information was astonishing, but his concentration span was short... 他吸收信息的能力令人吃惊，但是他的注意力持续时间很短。 Young children have a limited attention span and can't concentrate on one activity for very long. 小孩子的注意力持续时间十分有限，不能长时间地专注于一个活动。 3 [VERB 动词]持续；跨越；贯穿 If something spans a long period of time, it lasts throughout that period of time or relates to that whole period of time. [V n] [no passive] His professional career spanned 16 years... 他的职业生涯持续了 16 年。 The film, spanning almost a quarter-century, tells the story of Henry Hill... 这部时间跨度将近四分之一世纪的影片讲述的是亨利·希尔的故事。 Lining a corridor is a wall of photographs spanning his rugby days. 走廊的一面墙上贴满了他橄榄球生涯里各个时期的照片。 4 [VERB 动词]包括；遍及 If something spans a range of things, all those things are included in it. [V n] [no passive] Bernstein's compositions spanned all aspects of music, from symphonies to musicals. 伯恩斯坦创作的乐曲涉及了从交响乐到音乐剧等音乐的各个方面。 ...a remarkable man whose interests spanned almost every aspect of nature. 一个兴趣广泛、几乎涉猎了自然学科所有领域的杰出男性 5 [N-COUNT 可数名词]宽度；宽幅 The span of something that extends or is spread out sideways is the total width of it from one end to the other. [usu with supp] 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。 It may be that you are unaware of where your hip joint is； it is not at the waist but a good hand span below it. 这也许是因为你并不晓得髋关节的位置，它不在腰部，而是位于腰部以下一手拃宽处。 6 [VERB 动词](桥等建筑物)横跨，跨越 A bridge or other structure that spans something such as a river or a valley stretches right across it. [V n] Travellers get from one side to the other by walking across a footbridge that spans a little stream. 游客通过一座横跨小溪的步行桥从一边来到另一边。 ...the humped iron bridge spanning the railway... 横越铁路的铁拱桥 Architects tell their clients that floors can span 100 metres without any visible means of support. 建筑师告诉他们的客户，在没有任何有形支撑物的情况下，楼板可以延伸 100 米。 7 See also:spick and span ；
来源	2007.1

Span Time N Period N Count 可数名词 [Usu Verb