时间: 2025-04-24 17:57:40
美: [spæn]
英: [spæn]
n. 跨度，跨距；范围
vt. 跨越；持续；以手指测量
n. (Span)人名；(捷)斯潘
最后更新时间:2025-04-24 17:57:40
词源分析：Span源自古英语“spanian”，意为“伸展”。其词根为“span”，表示跨越的距离或幅度。
历史背景：Span首次被记录在公元前的古英语文本中，通常用来描述时间的长度或空间的距离。
课本：Span通常出现在小学到中学的英语教材中，尤其是在描述尺寸、距离和时间的单元中。在牛津和美国的教材中，通常会在中级英语学*阶段介绍该词。
正式与非正式语境：
特殊场合：
The span of the arch is impressive.
（拱门的跨度令人印象深刻。）
— 发表在《建筑学杂志》上。
His career spans over three decades.
（他的职业生涯跨越了三十多年。）
— 作者：John Smith, 《职业发展》。
The time span between the two events was significant.
（这两个**之间的时间跨度是显著的。）
— 来源：《历史研究》。
The span of a human hand can vary greatly.
（人手的跨度可以有很大差异。）
— 发表在《人类学杂志》。
The project spans multiple disciplines.
（该项目跨越多个学科。）
— 作者：Linda Green, 《跨学科研究》。
同义词：
反义词：
通过以上分析，用户可以更全面地理解和掌握“span”这个单词的含义、用法及应用场景。
[N-COUNT] A span is the period of time between two dates or events during which something exists, functions, or happens. (两时间点之间的) 时间段
例：The batteries had a life span of six hours.电池的使用寿命是6小时。
[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) 持续时间
例：His ability to absorb information was astonishing, but his concentration span was short.他吸收信息的能力让人惊讶，但他的注意力持续时间很短。
[[no passive]] If something spans a long period of time, it lasts throughout that period of time or relates to that whole period of time. 持续
例：His professional career spanned 16 years.他的职业生涯持续了16年。
[[no passive]] If something spans a range of things, all those things are included in it. 包括
例：Bernstein's compositions spanned all aspects of music, from symphonies to musicals.伯恩斯坦创作的乐曲包括了音乐的所有方面，从交响乐到音乐剧。
[[usu with supp]] The span of something that extends or is spread out sideways is the total width of it from one end to the other. 宽距
例：It is a very pretty butterfly, with a 2 inch wing span.它是一只非常漂亮的蝴蝶，翅膀张开有2英寸宽。
[V-T] A bridge or other structure that spans something such as a river or a valley stretches right across it. 横跨
例：Travellers get from one side to the other by walking across a footbridge that spans a little stream.旅游者通过一座横跨小溪的人行桥从一边走到另一边。