in the span of + time
强调某事在某段完整时间内发生或完成，时间通常较短。
In the span of a single week, she learned to swim.
在短短一周之内，她学会了游泳。
持续时间；期间
spans — plural of span
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
从拇指到小指的全手宽度,用作非正式长度单位
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.
某事的完整持续时间
the complete duration of something
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
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.
两点之间的距离或间隔
the distance or interval between two points
小空间或短时间
A small space or a brief portion of time.
两个同类物品
two items of the same kind
某物的长度部分；子序列
A portion of something by length; a subsequence.
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
The spread or extent of an arch or between its abutments, or of a beam, girder, truss, roof, bridge, or the like, between supports.
两连续支撑之间的电缆、导线、绳索、链条的长度
The length of a cable, wire, rope, chain between two consecutive supports.
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
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.
向量集合中所有线性组合的空间
The space of all linear combinations of vectors within a set.
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
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.
飞机或鸟的翼展
wingspan of a plane or bird
The span of the meeting was just thirty minutes.
会议的时间跨度只有三十分钟。
用法提示：这里 span 作名词，表示一段持续时间。
AI contextual example
Children's attention spans are usually short.
孩子的注意力持续时间通常很短。
用法提示：这里 span 用复数形式，表示注意力持续的时间。
AI contextual example
In a five-year span, the town built three new schools.
在五年的时间里，这个小镇建了三所新学校。
用法提示：这里 span 用于介词短语中，指一段时间。
AI contextual example
强调某事在某段完整时间内发生或完成，时间通常较短。
In the span of a single week, she learned to swim.
在短短一周之内，她学会了游泳。
强调动作在一段较长的时间内持续进行，常用于回顾经历或过程。
He wrote the novel over a span of ten years.
他用十年的时间写成了这部小说。
指两个支撑点之间的距离，多用于桥梁、拱等建筑；也可指某事持续的整个时期。
Engineers measured the span of the bridge.
工程师们测量了这座桥的跨度。
最通用，可替换表示“一段时间”的 span，如 a short span of time → a short period of time；但 attention span 等固定搭配中不能用 period。
更正式，强调实际持续的长度，常用于 the duration of...；span 既可指时间也可指空间，而 duration 只指时间。
语义最宽泛，单独使用常表示“时间”，需加修饰语（如 a short time）才能对应 span；不能表达“跨度”这一具体长度。
非正式，强调时间段不间断，常与 long/short 搭配，如 a long stretch；语体比 span 更口语化。
多指较短的一段时期，如 a cold spell；不能指整个跨度或固定期限，与 span 的“完整持续”含义有差别。
grammar · medium
易错句子The span between 1990 to 2000 saw rapid growth.
正确表达The span between 1990 and 2000 saw rapid growth.
表示“两个端点之间的间隔”时，固定搭配是 between A and B，不能用 between A to B。汉语“从1990年到2000年”里的“到”很容易被直译成 to，这里应改为 and。
grammar · medium
易错句子She worked in the same company for long span of time.
正确表达She worked in the same company for a long span of time.
span 作“（一段）持续时间”讲时是可数名词，单数形式前必须加不定冠词，构成 a long span of time。汉语名词前没有冠词，学习者常把 a 漏掉。
grammar · medium
易错句子The average span of human life have increased greatly.
正确表达The average span of human life has increased greatly.
本句主语是单数名词 span，谓语必须用单数形式 has；of human life 只是修饰 span 的介词短语，不改变主谓一致。汉语动词没有单复数变化，容易被长修饰语干扰而误用 have。
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。
寿命；存在时间
The life span of a housefly is short.
苍蝇的寿命很短。
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。
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。
一掌距；一拃
The table is about four hand spans wide.
这张桌子大约有四拃宽。
一生；寿命
The doctor dedicated her span of life to helping the poor.
这位医生把一生都奉献给帮助穷人。
在……期间内
The team finished the project in a span of just two weeks.
团队在短短两周内完成了项目。
管理幅度；控制跨度
The manager reduced her span of control to improve supervision.
经理缩小了管理幅度以改善监督。
谁曾用手心量诸水，用手虎口量苍天，用升斗量地上的尘土，用秤称山岭，用天平称冈陵呢？
This famous verse from the King James Bible uses 'span' to mean the distance between the thumb and the little finger, showing how small the universe is compared to God.
这句出自钦定版圣经的名句用 'span' 表示拇指到小指之间的距离，说明宇宙在上帝面前是多么渺小。
你使我的年日窄如手掌；我一生的岁数在你面前如同无有。
In this verse from the New International Version of the Bible, 'span' refers to the short length of a human life, emphasizing that our years are nothing before God.
在这节出自新国际版圣经的经文中，'span' 指人类生命的短暂长度，强调我们的岁月在上帝面前算不了什么。
Choose the next layer that will help you use spans with more confidence.
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