span

/spæn/ (bre, ipa) · /spæn/ (ame, ipa) · /ˈspan/ (ame, mw)

span — 名詞

  • spansingular
  • spansplural

1. how long something continues to exist, work, or be available, measured from its

1.名詞B1
釋義

期間

事物存在或發生的時間長度

how long something continues to exist, work, or be available, measured from its beginning to its end

例句

The average human attention span has become shorter in the digital age.

數位時代中,人類的平均注意力廣度已變得更短。

collocation: attention span

Faisal completed the entire project within a span of just three weeks.

Faisal 在短短三週的時間內就完成了整個專案。

grammar: a span of + time period

同義詞
  • duration

    more technical or formal than 'span'; used in academic or scientific contexts

  • period

    broader and more neutral; can refer to any block of time

  • length

    less specific to time; also used for physical distance

反義詞
  • instant

    a single moment rather than a measured duration

文法句型

a span of + period

用法筆記

Often paired with a modifier like 'attention,' 'life,' 'concentration,' or 'time' to specify what kind of duration is being measured.

常見錯誤

The span of the meeting was two hours long
The meeting lasted two hours.
💡'span' is more natural for longer or notable durations, not short everyday events.

2. the full distance between one end of an object or open space and the opposite en

2.名詞B1
釋義

全長

物體兩端之間的距離

the full distance between one end of an object or open space and the opposite end

例句

The garden wall measured a span of nearly twelve metres from house to gate.

花園圍牆從房子到大門的長度將近十二公尺。

collocation: span of [enclosure]

The wings of that bird have an impressive span of nearly two metres.

那種鳥的翅膀全長將近兩公尺,令人印象深刻。

collocation: wingspan / wing span

同義詞
  • width

    more common for everyday horizontal distances, while 'span' suggests a more dramatic or notable stretch

  • breadth

    more literary or formal; suggests impressive width

反義詞

文法句型

the span of + noun

3. the section of a bridge, arch, or other structure that stretches between two sup

3.名詞B2
釋義

橋跨

橋樑兩支撐點之間的結構段

the section of a bridge, arch, or other structure that stretches between two supporting points

例句

The central span of the bridge was rebuilt after the earthquake damaged its supports.

橋樑的中段橋跨在地震損壞其支撐後進行了重建。

Engineers designed a single concrete span to connect the two sides of the valley.

工程師設計了一個單一混凝土橋跨來連接山谷的兩端。

collocation: single span

同義詞
  • arch

    a curved span; more specific about shape

  • section

    more general and less technical

文法句型

a single-span bridge; span of + number + metres

用法筆記

Frequently used in civil engineering and architecture to describe bridge or roof structures. The 'span' is specifically the unsupported section between piers or columns.

常見錯誤

The bridge has three spans holding the road up
The bridge has three spans supported by four piers.
💡'span' refers to the section between supports, not the supports themselves.

4. a historical unit based on the greatest distance possible between the thumb tip

4.名詞C1
釋義

掌幅

拇指到小指張開的距離(約23公分)

a historical unit based on the greatest distance possible between the thumb tip and the tip of the smallest finger when the hand is opened wide, about 23 centimetres

例句

In medieval times, cloth was often measured by the span of a hand.

中世紀時,布匹常用手掌的掌幅來測量。

historical usage

Old texts describe the statue as standing just three spans tall.

古老文獻描述那座雕像僅有三掌幅高。

同義詞
  • handbreadth

    a related but different measure based on the palm, not the spread fingers

用法筆記

Chiefly found in historical writing, traditional crafts, or descriptions of pre-modern measurement systems. Not used in modern everyday contexts.

span — 動詞

span — 形容詞