attention span
collocation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。
持续时间；期间
先理解核心含义，再看它在真实句子里的用法。
持续时间；期间
the complete duration of something
The span of the meeting was just thirty minutes.
会议的时间跨度只有三十分钟。
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
Children's attention spans are usually short.
孩子的注意力持续时间通常很短。
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。
AI contextual example
the job was finished in the span of an hour
这项工作在一小时内完成了
WordNet
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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。
Use Span naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
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）。
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。
可数名词，常与 of 或 between 连用表示时间或距离的范围
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.