Word · CEFR C2 · Frequency #16348
sheafs
捆；束
sheafs is the plural of sheaf.
A bundle of grain stalks or straw tied together; any collection of things bound together.
- 1.
A quantity of the stalks and ears of wheat, rye, or other grain, bound together; a bundle of grain or straw.
(谷物)捆；束
- 2.
Any collection of things bound together.
- 3.
A bundle of arrows sufficient to fill a quiver, or the allowance of each archer.
- 4.
A quantity of arrows, usually twenty-four.
- 5.
A sheave.
- 6.
An abstract construct in topology that associates data to the open sets of a topological space (i.e. a presheaf) in such a way so as to make the local and global data compatible, generalizing the situation of functions, fiber bundles, manifold structure, etc. on a topological space. Formally, a presheaf F whose sections are, in a technical sense, uniquely determined by their restrictions onto smaller sets: that is, given an open cover U_i of U:
一束箭；满箭筒的箭（通常二十四支）；层（数学）；滑轮；槽轮；(谷物)捆；束；束
In use
The farmer tied the wheat into a sheaf and stacked it in the barn.
She gathered a sheaf of papers from the printer and sorted them by date.
During the harvest, the workers collected the sheaves and loaded them onto the truck.
a sheaf of [plural noun]
常指纸张或类似薄片物的一叠。
He carried a sheaf of papers under his arm.
他腋下夹着一叠文件。
sheaves of [plural noun]
常指谷物或草等作物。
Farmers stacked sheaves of wheat in the field.
农民们把一捆捆小麦堆在田里。
in sheaves
用于描述捆绑成束的状态。
Connections
Collocations
- a sheaf of papers
- 一沓文件
- He handed me a sheaf of papers.他递给我一沓文件。
- a sheaf of wheat
- 一捆小麦
- The farmer carried a sheaf of wheat.农民扛着一捆小麦。
- bind ... into sheaves
- 把……捆成捆
- Workers bound the cut grain into sheaves.工人们把割下的谷物捆成捆。
- a sheaf of arrows
- 一束箭
- The archer had a sheaf of arrows at his side.弓箭手身边有一束箭。
- a sheaf of notes
- 一叠笔记
- She pulled a sheaf of notes from her bag.她从包里拿出一叠笔记。
- a sheaf of grain
Learner notes
Memory Tip
sheaf 中的 f 像一株麦秆或一支箭，把它们捆在一起就是 sheaf（一捆/一束）。
Context & Register
语域：mixed 常见场景：agriculture / harvest、formal or literary writing、mathematics sheaf 在“捆、束”义项上多用于农业或正式书面语，比较常见于文学描写；在数学中指“层”时属于专业术语。日常口语较少用，可说 bundle。
Grammar Note
可数名词，不规则复数形式 sheaves。
Pronunciation & Spelling
与 sheaf 押韵（/iːf/）的词有 leaf、chief、thief、grief、belief。注意 deaf 拼写同为 -eaf，但读音是 /dɛf/，不押韵。也要小心 sheath /ʃiːθ/ 与 sheaf 形似，读音以 /θ/ 结尾。
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 ECDICT, OCTANOVE, WIKTIONARY.