Word · Frequency #5988
chalks
粉笔
chalks is the plural of chalk.
核心释义
a stick of chalk used for writing or drawing on a blackboard
- 1.
一种柔软、白色、粉状的石灰石(碳酸钙,CaCO3)
A soft, white, powdery limestone (calcium carbonate, CaCO3).
- 2.
一种柔软的白色方解石
a soft whitish calcite
- 3.
一块粉笔,或现今加工压制的石膏(硫酸钙,CaSO4),用于绘画和在黑板上书写
A piece of chalk, or nowadays processed compressed gypsum (calcium sulfate, CaSO4), that is used for drawing and for writing on a blackboard (chalkboard).
- 4.
一种反射率极低的纯平白色
a pure flat white with little reflectance
- 5.
裁缝用粉笔
Tailor's chalk.
- 6.
一种苯丙胺衍生物(商品名 Methedrine),以结晶盐酸盐形式使用,用作神经系统兴奋剂和食欲抑制剂
an amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant
- 7.
一种白色粉状物质,用于防止攀岩时手从抓握处滑落,或在举重或体操中失去抓力,有时但不总是石灰石粉笔,通常是碳酸镁(MgCO3)
A white powdery substance used to prevent hands slipping from holds when climbing, or losing grip in weight-lifting or gymnastics, sometimes but not always limestone-chalk, often magnesium carbonate (MgCO3).
白垩；划粉；裁缝粉笔；防滑粉；镁粉；白垩色；粉白；冰毒；甲基苯丙胺
用法In use
The teacher picked up a piece of chalk and wrote the math problem on the blackboard.
用法提示：chalk 此处为不可数名词，用 a piece of chalk 表示“一支粉笔”。
We bought colored chalk so the children could draw pictures on the sidewalk.
用法提示：chalk 作为物质名词，指用于绘画的粉笔材料。
She dusted the chalk off her hands after writing the announcement.
用法提示：chalk 在此指书写后残留在手上的白色粉末。
a piece of chalk
chalk 表示“粉笔”时通常不可数，计量时用 a piece of chalk 或 a stick of chalk。
The teacher picked up a piece of chalk and wrote the date on the board.
老师拿起一支粉笔，在黑板上写下了日期。
in chalk
in chalk 表示“用粉笔（写、画）”，强调书写的材料或方式。
相关词与表达Connections
搭配Collocations
- a piece of chalk
- 一根粉笔
- The teacher picked up a piece of chalk and began to write on the board.老师拿起一根粉笔，开始在黑板上写字。
- chalk dust
- 粉笔灰
- Chalk dust had settled along the tray under the blackboard.黑板下方的粉笔槽里落了一层粉笔灰。
- chalk drawing
- 粉笔画
- The children made a colorful chalk drawing on the pavement.孩子们在人行道上画了一幅色彩鲜艳的粉笔画。
- chalk marks
- 粉笔标记
- There were faint chalk marks on the wall where the shelf should go.墙上留着淡淡的粉笔标记，标示架子该装的位置。
- tailor's chalk
学习提示Learner notes
语法说明Grammar Note
chalk 指白垩/粉笔材料时是不可数名词；指一支粉笔或一种粉笔时是可数名词，复数形式为 chalks。
用法优先级Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
一起学习词形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, WIKTIONARY.