Word · CEFR B2 · Frequency #6903
Span
持续时间；期间
the complete duration of something
- 1.
The full width of an open hand from the end of the thumb to the end of the little finger used as an informal unit of length.
从拇指到小指的全手宽度,用作非正式长度单位
- 2.
the complete duration of something
某事的完整持续时间
- 3.
Any of various traditional units of length approximating this distance, especially the English handspan of 9 inches forming 1⁄8 fathom and equivalent to 22.86 cm.
各种传统长度单位,尤其是9英寸的英制手宽,约为22.86厘米
- 4.
the distance or interval between two points
两点之间的距离或间隔
- 5.
A small space or a brief portion of time.
小空间或短时间
- 6.
two items of the same kind
两个同类物品
- 7.
A portion of something by length; a subsequence.
某物的长度部分；子序列
- 8.
The spread or extent of an arch or between its abutments, or of a beam, girder, truss, roof, bridge, or the like, between supports.
拱的跨度或支座之间的距离,或梁、桁架、屋顶、桥梁等的支撑之间的距离
- 9.
The length of a cable, wire, rope, chain between two consecutive supports.
两连续支撑之间的电缆、导线、绳索、链条的长度
- 10.
A rope having its ends made fast so that a purchase can be hooked to the bight; also, a rope made fast in the center so that both ends can be used.
两端固定的绳索,以便在中间挂钩；也指中间固定的绳索,两端可用
- 11.
The space of all linear combinations of vectors within a set.
向量集合中所有线性组合的空间
- 12.
The time required to execute a parallel algorithm on an infinite number of processors, i.e. the shortest distance across a directed acyclic graph representing the computation steps.
在无限数量处理器上执行并行算法所需的时间,即表示计算步骤的有向无环图的最短距离
- 13.
wingspan of a plane or bird
飞机或鸟的翼展
间距；间隔；（短暂的）一段时间；跨度；跨距；一拃（拇指尖到小指尖的距离）；一对；一双；按长度划分的一段；子序列
In use
The span of the meeting was just thirty minutes.
Children's attention spans are usually short.
In a five-year span, the town built three new schools.
the job was finished in the span of an hour
Connections
Collocations
- attention span
- 注意力持续时间；专注时长
- Teenagers have a longer attention span when they are interested in a topic.青少年在感兴趣的话题上注意力持续时间更长。
- life span
- 寿命；存在时间
- The life span of a housefly is short.苍蝇的寿命很短。
- time span
- 时间跨度；一段时间
- The festival was held over a time span of two weeks.这个节日的活动时间跨度长达两周。
- bridge span
- 桥跨；桥梁的跨距
- Engineers are inspecting each bridge span.工程师正在检查每一段桥跨。
- hand span
- 一掌距；一拃
- The table is about four hand spans wide.这张桌子大约有四拃宽。
Idioms & figurative uses
Learner notes
Memory Tip
sp- 开头让人想到 spread（展开）：手撑开是 span（指距），时间展开也是 span（期间）。
Context & Register
语域：neutral 常见场景：时间与日程安排、距离与范围描述、工程与建筑讨论 作名词时，span 通常指时间或空间上的“跨度/持续长度”，语气中性，正式与非正式场合都可用；在书面说明、报告等语境中尤其常见。
Grammar Note
可数名词，常与 of 或 between 连用表示时间或距离的范围
Pronunciation & Spelling
These words rhyme with span (/spæn/): man, plan, can, ran, than — all end with the sound /æn/. Spa looks similar in spelling but is pronounced /spɑː/, so it does not rhyme.
Usage priority
Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.